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Finding the Fourth Proportional to 315,092.64, 434,753.04 and 179,115.84

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Solution

The fourth proportional to 315,092.64, 434,753.04 and 179,115.84 is: 247,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,092.64 : 434,753.04 = 179,115.84 : x
  2. Step 2: Convert to fraction form
    315,092.64/434,753.04 = 179,115.84/x
  3. Step 3: Cross multiply
    315,092.64x = 434,753.04 × 179,115.84
  4. Step 4: Simplify right side
    315,092.64x = 77,871,155,952.15
  5. Step 5: Solve for x
    x = 77,871,155,952.15/315,092.64
  6. Step 6: Final answer
    x = 247,137.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.