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Finding the Fourth Proportional to 617,148.52, 926,248.78 and 243,433.96

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Solution

The fourth proportional to 617,148.52, 926,248.78 and 243,433.96 is: 365,358.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,148.52 : 926,248.78 = 243,433.96 : x
  2. Step 2: Convert to fraction form
    617,148.52/926,248.78 = 243,433.96/x
  3. Step 3: Cross multiply
    617,148.52x = 926,248.78 × 243,433.96
  4. Step 4: Simplify right side
    617,148.52x = 225,480,408,460.57
  5. Step 5: Solve for x
    x = 225,480,408,460.57/617,148.52
  6. Step 6: Final answer
    x = 365,358.42

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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.