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Finding the Fourth Proportional to 315,110.43, 472,664.88 and 135,079.14

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Solution

The fourth proportional to 315,110.43, 472,664.88 and 135,079.14 is: 202,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,110.43 : 472,664.88 = 135,079.14 : x
  2. Step 2: Convert to fraction form
    315,110.43/472,664.88 = 135,079.14/x
  3. Step 3: Cross multiply
    315,110.43x = 472,664.88 × 135,079.14
  4. Step 4: Simplify right side
    315,110.43x = 63,847,165,498.60
  5. Step 5: Solve for x
    x = 63,847,165,498.60/315,110.43
  6. Step 6: Final answer
    x = 202,618.38

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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.