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Finding the Fourth Proportional to 217,506.52, 300,135.54 and 125,620.12

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Solution

The fourth proportional to 217,506.52, 300,135.54 and 125,620.12 is: 173,342.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,506.52 : 300,135.54 = 125,620.12 : x
  2. Step 2: Convert to fraction form
    217,506.52/300,135.54 = 125,620.12/x
  3. Step 3: Cross multiply
    217,506.52x = 300,135.54 × 125,620.12
  4. Step 4: Simplify right side
    217,506.52x = 37,703,062,551.06
  5. Step 5: Solve for x
    x = 37,703,062,551.06/217,506.52
  6. Step 6: Final answer
    x = 173,342.22

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1.5x scale

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.