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Finding the Fourth Proportional to 383,008.80, 574,772.40 and 172,538.40

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Solution

The fourth proportional to 383,008.80, 574,772.40 and 172,538.40 is: 258,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,008.80 : 574,772.40 = 172,538.40 : x
  2. Step 2: Convert to fraction form
    383,008.80/574,772.40 = 172,538.40/x
  3. Step 3: Cross multiply
    383,008.80x = 574,772.40 × 172,538.40
  4. Step 4: Simplify right side
    383,008.80x = 99,170,310,260.16
  5. Step 5: Solve for x
    x = 99,170,310,260.16/383,008.80
  6. Step 6: Final answer
    x = 258,924.36

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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.