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Finding the Third Proportional to 153,397.50 and 235,455

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Solution

The third proportional to 153,397.50 and 235,455 is: 361,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,397.50 : 235,455 = 235,455 : x
  2. Step 2: Convert to fraction form
    153,397.50/235,455 = 235,455/x
  3. Step 3: Cross multiply
    153,397.50x = 235,455 × 235,455
  4. Step 4: Simplify right side
    153,397.50x = 55,439,057,025
  5. Step 5: Solve for x
    x = 55,439,057,025/153,397.50
  6. Step 6: Final answer
    x = 361,407.83

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.