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Finding the Fourth Proportional to 238,392.73, 357,549.79 and 78,470.75

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Solution

The fourth proportional to 238,392.73, 357,549.79 and 78,470.75 is: 117,693.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,392.73 : 357,549.79 = 78,470.75 : x
  2. Step 2: Convert to fraction form
    238,392.73/357,549.79 = 78,470.75/x
  3. Step 3: Cross multiply
    238,392.73x = 357,549.79 × 78,470.75
  4. Step 4: Simplify right side
    238,392.73x = 28,057,199,791.29
  5. Step 5: Solve for x
    x = 28,057,199,791.29/238,392.73
  6. Step 6: Final answer
    x = 117,693.19

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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.