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Finding the Fourth Proportional to 217,737.73, 300,470.35 and 122,248.45

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Solution

The fourth proportional to 217,737.73, 300,470.35 and 122,248.45 is: 168,698.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,737.73 : 300,470.35 = 122,248.45 : x
  2. Step 2: Convert to fraction form
    217,737.73/300,470.35 = 122,248.45/x
  3. Step 3: Cross multiply
    217,737.73x = 300,470.35 × 122,248.45
  4. Step 4: Simplify right side
    217,737.73x = 36,732,033,056.11
  5. Step 5: Solve for x
    x = 36,732,033,056.11/217,737.73
  6. Step 6: Final answer
    x = 168,698.53

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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.