Home / 289,442.92-399,439.02-162,115.72

Finding the Fourth Proportional to 289,442.92, 399,439.02 and 162,115.72

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Solution

The fourth proportional to 289,442.92, 399,439.02 and 162,115.72 is: 223,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,442.92 : 399,439.02 = 162,115.72 : x
  2. Step 2: Convert to fraction form
    289,442.92/399,439.02 = 162,115.72/x
  3. Step 3: Cross multiply
    289,442.92x = 399,439.02 × 162,115.72
  4. Step 4: Simplify right side
    289,442.92x = 64,755,344,323.39
  5. Step 5: Solve for x
    x = 64,755,344,323.39/289,442.92
  6. Step 6: Final answer
    x = 223,724.06

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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.