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Finding the Fourth Proportional to 510,092.70, 765,139.05 and 273,896.70

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Solution

The fourth proportional to 510,092.70, 765,139.05 and 273,896.70 is: 410,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,092.70 : 765,139.05 = 273,896.70 : x
  2. Step 2: Convert to fraction form
    510,092.70/765,139.05 = 273,896.70/x
  3. Step 3: Cross multiply
    510,092.70x = 765,139.05 × 273,896.70
  4. Step 4: Simplify right side
    510,092.70x = 209,569,060,836.14
  5. Step 5: Solve for x
    x = 209,569,060,836.14/510,092.70
  6. Step 6: Final answer
    x = 410,845.05

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.