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Finding the Fourth Proportional to 247,955.20, 371,932.80 and 238,278.40

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Solution

The fourth proportional to 247,955.20, 371,932.80 and 238,278.40 is: 357,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,955.20 : 371,932.80 = 238,278.40 : x
  2. Step 2: Convert to fraction form
    247,955.20/371,932.80 = 238,278.40/x
  3. Step 3: Cross multiply
    247,955.20x = 371,932.80 × 238,278.40
  4. Step 4: Simplify right side
    247,955.20x = 88,623,552,491.52
  5. Step 5: Solve for x
    x = 88,623,552,491.52/247,955.20
  6. Step 6: Final answer
    x = 357,417.60

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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.