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Finding the Fourth Proportional to 237,955.97, 356,820.06 and 138,143.72

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Solution

The fourth proportional to 237,955.97, 356,820.06 and 138,143.72 is: 207,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,955.97 : 356,820.06 = 138,143.72 : x
  2. Step 2: Convert to fraction form
    237,955.97/356,820.06 = 138,143.72/x
  3. Step 3: Cross multiply
    237,955.97x = 356,820.06 × 138,143.72
  4. Step 4: Simplify right side
    237,955.97x = 49,292,450,459.02
  5. Step 5: Solve for x
    x = 49,292,450,459.02/237,955.97
  6. Step 6: Final answer
    x = 207,149.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.