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Finding the Fourth Proportional to 247,956.16, 372,092.64 and 90,169.60

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Solution

The fourth proportional to 247,956.16, 372,092.64 and 90,169.60 is: 135,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,956.16 : 372,092.64 = 90,169.60 : x
  2. Step 2: Convert to fraction form
    247,956.16/372,092.64 = 90,169.60/x
  3. Step 3: Cross multiply
    247,956.16x = 372,092.64 × 90,169.60
  4. Step 4: Simplify right side
    247,956.16x = 33,551,444,511.74
  5. Step 5: Solve for x
    x = 33,551,444,511.74/247,956.16
  6. Step 6: Final answer
    x = 135,312.00

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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.