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Finding the Fourth Proportional to 385,605.54, 532,141.10 and 222,171.74

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Solution

The fourth proportional to 385,605.54, 532,141.10 and 222,171.74 is: 306,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,605.54 : 532,141.10 = 222,171.74 : x
  2. Step 2: Convert to fraction form
    385,605.54/532,141.10 = 222,171.74/x
  3. Step 3: Cross multiply
    385,605.54x = 532,141.10 × 222,171.74
  4. Step 4: Simplify right side
    385,605.54x = 118,226,710,340.95
  5. Step 5: Solve for x
    x = 118,226,710,340.95/385,605.54
  6. Step 6: Final answer
    x = 306,600.13

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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.