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Finding the Fourth Proportional to 393,088.68, 588,457.86 and 240,806.04

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Solution

The fourth proportional to 393,088.68, 588,457.86 and 240,806.04 is: 360,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,088.68 : 588,457.86 = 240,806.04 : x
  2. Step 2: Convert to fraction form
    393,088.68/588,457.86 = 240,806.04/x
  3. Step 3: Cross multiply
    393,088.68x = 588,457.86 × 240,806.04
  4. Step 4: Simplify right side
    393,088.68x = 141,704,206,973.47
  5. Step 5: Solve for x
    x = 141,704,206,973.47/393,088.68
  6. Step 6: Final answer
    x = 360,489.16

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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.