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Finding the Fourth Proportional to 306,240.90, 459,422.67 and 171,496.59

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Solution

The fourth proportional to 306,240.90, 459,422.67 and 171,496.59 is: 257,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,240.90 : 459,422.67 = 171,496.59 : x
  2. Step 2: Convert to fraction form
    306,240.90/459,422.67 = 171,496.59/x
  3. Step 3: Cross multiply
    306,240.90x = 459,422.67 × 171,496.59
  4. Step 4: Simplify right side
    306,240.90x = 78,789,421,273.70
  5. Step 5: Solve for x
    x = 78,789,421,273.70/306,240.90
  6. Step 6: Final answer
    x = 257,279.22

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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.