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Finding the Fourth Proportional to 349,355.28, 524,143.74 and 124,710.78

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Solution

The fourth proportional to 349,355.28, 524,143.74 and 124,710.78 is: 187,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,355.28 : 524,143.74 = 124,710.78 : x
  2. Step 2: Convert to fraction form
    349,355.28/524,143.74 = 124,710.78/x
  3. Step 3: Cross multiply
    349,355.28x = 524,143.74 × 124,710.78
  4. Step 4: Simplify right side
    349,355.28x = 65,366,374,647.52
  5. Step 5: Solve for x
    x = 65,366,374,647.52/349,355.28
  6. Step 6: Final answer
    x = 187,105.73

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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.