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Finding the Third Proportional to 140,038.13 and 215,248.69

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Solution

The third proportional to 140,038.13 and 215,248.69 is: 330,852.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.13 : 215,248.69 = 215,248.69 : x
  2. Step 2: Convert to fraction form
    140,038.13/215,248.69 = 215,248.69/x
  3. Step 3: Cross multiply
    140,038.13x = 215,248.69 × 215,248.69
  4. Step 4: Simplify right side
    140,038.13x = 46,331,997,470.47
  5. Step 5: Solve for x
    x = 46,331,997,470.47/140,038.13
  6. Step 6: Final answer
    x = 330,852.74

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.