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Finding the Fourth Proportional to 510,101.20, 765,151.80 and 273,905.20

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Solution

The fourth proportional to 510,101.20, 765,151.80 and 273,905.20 is: 410,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,101.20 : 765,151.80 = 273,905.20 : x
  2. Step 2: Convert to fraction form
    510,101.20/765,151.80 = 273,905.20/x
  3. Step 3: Cross multiply
    510,101.20x = 765,151.80 × 273,905.20
  4. Step 4: Simplify right side
    510,101.20x = 209,579,056,809.36
  5. Step 5: Solve for x
    x = 209,579,056,809.36/510,101.20
  6. Step 6: Final answer
    x = 410,857.80

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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.