Home / 402,948.57-603,660.90-238,139.19

Finding the Fourth Proportional to 402,948.57, 603,660.90 and 238,139.19

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Solution

The fourth proportional to 402,948.57, 603,660.90 and 238,139.19 is: 356,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,948.57 : 603,660.90 = 238,139.19 : x
  2. Step 2: Convert to fraction form
    402,948.57/603,660.90 = 238,139.19/x
  3. Step 3: Cross multiply
    402,948.57x = 603,660.90 × 238,139.19
  4. Step 4: Simplify right side
    402,948.57x = 143,755,317,760.67
  5. Step 5: Solve for x
    x = 143,755,317,760.67/402,948.57
  6. Step 6: Final answer
    x = 356,758.48

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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.