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Finding the Fourth Proportional to 247,075.20, 370,612.80 and 89,308.80

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Solution

The fourth proportional to 247,075.20, 370,612.80 and 89,308.80 is: 133,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,075.20 : 370,612.80 = 89,308.80 : x
  2. Step 2: Convert to fraction form
    247,075.20/370,612.80 = 89,308.80/x
  3. Step 3: Cross multiply
    247,075.20x = 370,612.80 × 89,308.80
  4. Step 4: Simplify right side
    247,075.20x = 33,098,984,432.64
  5. Step 5: Solve for x
    x = 33,098,984,432.64/247,075.20
  6. Step 6: Final answer
    x = 133,963.20

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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.