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Finding the Fourth Proportional to 323,118.72, 484,724.16 and 101,520

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Solution

The fourth proportional to 323,118.72, 484,724.16 and 101,520 is: 152,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,118.72 : 484,724.16 = 101,520 : x
  2. Step 2: Convert to fraction form
    323,118.72/484,724.16 = 101,520/x
  3. Step 3: Cross multiply
    323,118.72x = 484,724.16 × 101,520
  4. Step 4: Simplify right side
    323,118.72x = 49,209,196,723.20
  5. Step 5: Solve for x
    x = 49,209,196,723.20/323,118.72
  6. Step 6: Final answer
    x = 152,294.48

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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.