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Finding the Fourth Proportional to 285,004.54, 393,251.65 and 162,494.61

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Solution

The fourth proportional to 285,004.54, 393,251.65 and 162,494.61 is: 224,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,004.54 : 393,251.65 = 162,494.61 : x
  2. Step 2: Convert to fraction form
    285,004.54/393,251.65 = 162,494.61/x
  3. Step 3: Cross multiply
    285,004.54x = 393,251.65 × 162,494.61
  4. Step 4: Simplify right side
    285,004.54x = 63,901,273,877.71
  5. Step 5: Solve for x
    x = 63,901,273,877.71/285,004.54
  6. Step 6: Final answer
    x = 224,211.42

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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.