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Finding the Fourth Proportional to 436,807.08, 655,210.15 and 137,313.83

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Solution

The fourth proportional to 436,807.08, 655,210.15 and 137,313.83 is: 205,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,807.08 : 655,210.15 = 137,313.83 : x
  2. Step 2: Convert to fraction form
    436,807.08/655,210.15 = 137,313.83/x
  3. Step 3: Cross multiply
    436,807.08x = 655,210.15 × 137,313.83
  4. Step 4: Simplify right side
    436,807.08x = 89,969,416,446.12
  5. Step 5: Solve for x
    x = 89,969,416,446.12/436,807.08
  6. Step 6: Final answer
    x = 205,970.60

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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.