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Finding the Fourth Proportional to 208,294.06, 287,446.08 and 112,800.92

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Solution

The fourth proportional to 208,294.06, 287,446.08 and 112,800.92 is: 155,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,294.06 : 287,446.08 = 112,800.92 : x
  2. Step 2: Convert to fraction form
    208,294.06/287,446.08 = 112,800.92/x
  3. Step 3: Cross multiply
    208,294.06x = 287,446.08 × 112,800.92
  4. Step 4: Simplify right side
    208,294.06x = 32,424,182,274.39
  5. Step 5: Solve for x
    x = 32,424,182,274.39/208,294.06
  6. Step 6: Final answer
    x = 155,665.42

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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.