Home / 381,296.16-571,944.24-131,978.16

Finding the Fourth Proportional to 381,296.16, 571,944.24 and 131,978.16

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Solution

The fourth proportional to 381,296.16, 571,944.24 and 131,978.16 is: 197,967.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,296.16 : 571,944.24 = 131,978.16 : x
  2. Step 2: Convert to fraction form
    381,296.16/571,944.24 = 131,978.16/x
  3. Step 3: Cross multiply
    381,296.16x = 571,944.24 × 131,978.16
  4. Step 4: Simplify right side
    381,296.16x = 75,484,148,417.80
  5. Step 5: Solve for x
    x = 75,484,148,417.80/381,296.16
  6. Step 6: Final answer
    x = 197,967.24

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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.