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Finding the Fourth Proportional to 315,652.40, 473,063.80 and 149,487.92

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Solution

The fourth proportional to 315,652.40, 473,063.80 and 149,487.92 is: 224,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,652.40 : 473,063.80 = 149,487.92 : x
  2. Step 2: Convert to fraction form
    315,652.40/473,063.80 = 149,487.92/x
  3. Step 3: Cross multiply
    315,652.40x = 473,063.80 × 149,487.92
  4. Step 4: Simplify right side
    315,652.40x = 70,717,323,489.30
  5. Step 5: Solve for x
    x = 70,717,323,489.30/315,652.40
  6. Step 6: Final answer
    x = 224,035.44

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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.