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Finding the Fourth Proportional to 366,955.20, 550,432.80 and 130,321.80

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Solution

The fourth proportional to 366,955.20, 550,432.80 and 130,321.80 is: 195,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,955.20 : 550,432.80 = 130,321.80 : x
  2. Step 2: Convert to fraction form
    366,955.20/550,432.80 = 130,321.80/x
  3. Step 3: Cross multiply
    366,955.20x = 550,432.80 × 130,321.80
  4. Step 4: Simplify right side
    366,955.20x = 71,733,393,275.04
  5. Step 5: Solve for x
    x = 71,733,393,275.04/366,955.20
  6. Step 6: Final answer
    x = 195,482.70

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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.