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Finding the Fourth Proportional to 482,521.60, 723,787.60 and 145,565.16

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Solution

The fourth proportional to 482,521.60, 723,787.60 and 145,565.16 is: 218,349.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,521.60 : 723,787.60 = 145,565.16 : x
  2. Step 2: Convert to fraction form
    482,521.60/723,787.60 = 145,565.16/x
  3. Step 3: Cross multiply
    482,521.60x = 723,787.60 × 145,565.16
  4. Step 4: Simplify right side
    482,521.60x = 105,358,257,800.02
  5. Step 5: Solve for x
    x = 105,358,257,800.02/482,521.60
  6. Step 6: Final answer
    x = 218,349.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.