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Finding the Fourth Proportional to 360,379.68, 497,337.96 and 239,312.20

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Solution

The fourth proportional to 360,379.68, 497,337.96 and 239,312.20 is: 330,260.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,379.68 : 497,337.96 = 239,312.20 : x
  2. Step 2: Convert to fraction form
    360,379.68/497,337.96 = 239,312.20/x
  3. Step 3: Cross multiply
    360,379.68x = 497,337.96 × 239,312.20
  4. Step 4: Simplify right side
    360,379.68x = 119,019,041,351.11
  5. Step 5: Solve for x
    x = 119,019,041,351.11/360,379.68
  6. Step 6: Final answer
    x = 330,260.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.