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Finding the Fourth Proportional to 315,337.32, 472,724.71 and 115,611.10

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Solution

The fourth proportional to 315,337.32, 472,724.71 and 115,611.10 is: 173,313.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,337.32 : 472,724.71 = 115,611.10 : x
  2. Step 2: Convert to fraction form
    315,337.32/472,724.71 = 115,611.10/x
  3. Step 3: Cross multiply
    315,337.32x = 472,724.71 × 115,611.10
  4. Step 4: Simplify right side
    315,337.32x = 54,652,222,249.44
  5. Step 5: Solve for x
    x = 54,652,222,249.44/315,337.32
  6. Step 6: Final answer
    x = 173,313.52

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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.