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Finding the Fourth Proportional to 323,005.46, 484,508.34 and 145,304.90

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Solution

The fourth proportional to 323,005.46, 484,508.34 and 145,304.90 is: 217,957.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,005.46 : 484,508.34 = 145,304.90 : x
  2. Step 2: Convert to fraction form
    323,005.46/484,508.34 = 145,304.90/x
  3. Step 3: Cross multiply
    323,005.46x = 484,508.34 × 145,304.90
  4. Step 4: Simplify right side
    323,005.46x = 70,401,435,892.87
  5. Step 5: Solve for x
    x = 70,401,435,892.87/323,005.46
  6. Step 6: Final answer
    x = 217,957.42

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1.5x scale

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.