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Finding the Fourth Proportional to 252,264.68, 348,128 and 137,542.40

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Solution

The fourth proportional to 252,264.68, 348,128 and 137,542.40 is: 189,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,264.68 : 348,128 = 137,542.40 : x
  2. Step 2: Convert to fraction form
    252,264.68/348,128 = 137,542.40/x
  3. Step 3: Cross multiply
    252,264.68x = 348,128 × 137,542.40
  4. Step 4: Simplify right side
    252,264.68x = 47,882,360,627.20
  5. Step 5: Solve for x
    x = 47,882,360,627.20/252,264.68
  6. Step 6: Final answer
    x = 189,810.01

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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.