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Finding the Fourth Proportional to 611,523.61, 917,330.52 and 162,234.53

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Solution

The fourth proportional to 611,523.61, 917,330.52 and 162,234.53 is: 243,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,523.61 : 917,330.52 = 162,234.53 : x
  2. Step 2: Convert to fraction form
    611,523.61/917,330.52 = 162,234.53/x
  3. Step 3: Cross multiply
    611,523.61x = 917,330.52 × 162,234.53
  4. Step 4: Simplify right side
    611,523.61x = 148,822,685,766.86
  5. Step 5: Solve for x
    x = 148,822,685,766.86/611,523.61
  6. Step 6: Final answer
    x = 243,363.76

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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.