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Finding the Third Proportional to 153,390 and 235,461.75

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Solution

The third proportional to 153,390 and 235,461.75 is: 361,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,390 : 235,461.75 = 235,461.75 : x
  2. Step 2: Convert to fraction form
    153,390/235,461.75 = 235,461.75/x
  3. Step 3: Cross multiply
    153,390x = 235,461.75 × 235,461.75
  4. Step 4: Simplify right side
    153,390x = 55,442,235,713.06
  5. Step 5: Solve for x
    x = 55,442,235,713.06/153,390
  6. Step 6: Final answer
    x = 361,446.22

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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.