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Finding the Fourth Proportional to 252,386.61, 348,294.61 and 137,667.72

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Solution

The fourth proportional to 252,386.61, 348,294.61 and 137,667.72 is: 189,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,386.61 : 348,294.61 = 137,667.72 : x
  2. Step 2: Convert to fraction form
    252,386.61/348,294.61 = 137,667.72/x
  3. Step 3: Cross multiply
    252,386.61x = 348,294.61 × 137,667.72
  4. Step 4: Simplify right side
    252,386.61x = 47,948,924,366.02
  5. Step 5: Solve for x
    x = 47,948,924,366.02/252,386.61
  6. Step 6: Final answer
    x = 189,982.05

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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.