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Finding the Fourth Proportional to 238,174.12, 357,269.40 and 78,253.40

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Solution

The fourth proportional to 238,174.12, 357,269.40 and 78,253.40 is: 117,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,174.12 : 357,269.40 = 78,253.40 : x
  2. Step 2: Convert to fraction form
    238,174.12/357,269.40 = 78,253.40/x
  3. Step 3: Cross multiply
    238,174.12x = 357,269.40 × 78,253.40
  4. Step 4: Simplify right side
    238,174.12x = 27,957,545,265.96
  5. Step 5: Solve for x
    x = 27,957,545,265.96/238,174.12
  6. Step 6: Final answer
    x = 117,382.80

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1.5x scale

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.