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Finding the Fourth Proportional to 238,509.66, 357,542.12 and 80,627.70

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Solution

The fourth proportional to 238,509.66, 357,542.12 and 80,627.70 is: 120,866.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,509.66 : 357,542.12 = 80,627.70 : x
  2. Step 2: Convert to fraction form
    238,509.66/357,542.12 = 80,627.70/x
  3. Step 3: Cross multiply
    238,509.66x = 357,542.12 × 80,627.70
  4. Step 4: Simplify right side
    238,509.66x = 28,827,798,788.72
  5. Step 5: Solve for x
    x = 28,827,798,788.72/238,509.66
  6. Step 6: Final answer
    x = 120,866.38

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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.