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Finding the Fourth Proportional to 238,373.87, 328,985.08 and 137,771.87

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Solution

The fourth proportional to 238,373.87, 328,985.08 and 137,771.87 is: 190,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,373.87 : 328,985.08 = 137,771.87 : x
  2. Step 2: Convert to fraction form
    238,373.87/328,985.08 = 137,771.87/x
  3. Step 3: Cross multiply
    238,373.87x = 328,985.08 × 137,771.87
  4. Step 4: Simplify right side
    238,373.87x = 45,324,887,684.34
  5. Step 5: Solve for x
    x = 45,324,887,684.34/238,373.87
  6. Step 6: Final answer
    x = 190,142.02

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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.