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Finding the Fourth Proportional to 383,279.76, 574,955.15 and 130,475.30

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Solution

The fourth proportional to 383,279.76, 574,955.15 and 130,475.30 is: 195,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,279.76 : 574,955.15 = 130,475.30 : x
  2. Step 2: Convert to fraction form
    383,279.76/574,955.15 = 130,475.30/x
  3. Step 3: Cross multiply
    383,279.76x = 574,955.15 × 130,475.30
  4. Step 4: Simplify right side
    383,279.76x = 75,017,442,155.64
  5. Step 5: Solve for x
    x = 75,017,442,155.64/383,279.76
  6. Step 6: Final answer
    x = 195,725.03

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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.