Home / 261,402.24-391,892.16-101,395.56

Finding the Fourth Proportional to 261,402.24, 391,892.16 and 101,395.56

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Solution

The fourth proportional to 261,402.24, 391,892.16 and 101,395.56 is: 152,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,402.24 : 391,892.16 = 101,395.56 : x
  2. Step 2: Convert to fraction form
    261,402.24/391,892.16 = 101,395.56/x
  3. Step 3: Cross multiply
    261,402.24x = 391,892.16 × 101,395.56
  4. Step 4: Simplify right side
    261,402.24x = 39,736,125,022.81
  5. Step 5: Solve for x
    x = 39,736,125,022.81/261,402.24
  6. Step 6: Final answer
    x = 152,011.42

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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.