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Finding the Fourth Proportional to 217,468.64, 300,144.48 and 126,877.52

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Solution

The fourth proportional to 217,468.64, 300,144.48 and 126,877.52 is: 175,113.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,468.64 : 300,144.48 = 126,877.52 : x
  2. Step 2: Convert to fraction form
    217,468.64/300,144.48 = 126,877.52/x
  3. Step 3: Cross multiply
    217,468.64x = 300,144.48 × 126,877.52
  4. Step 4: Simplify right side
    217,468.64x = 38,081,587,264.09
  5. Step 5: Solve for x
    x = 38,081,587,264.09/217,468.64
  6. Step 6: Final answer
    x = 175,113.01

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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.