Home / 382,905.30-574,358.08-172,297.20

Finding the Fourth Proportional to 382,905.30, 574,358.08 and 172,297.20

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Solution

The fourth proportional to 382,905.30, 574,358.08 and 172,297.20 is: 258,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,905.30 : 574,358.08 = 172,297.20 : x
  2. Step 2: Convert to fraction form
    382,905.30/574,358.08 = 172,297.20/x
  3. Step 3: Cross multiply
    382,905.30x = 574,358.08 × 172,297.20
  4. Step 4: Simplify right side
    382,905.30x = 98,960,285,678.84
  5. Step 5: Solve for x
    x = 98,960,285,678.84/382,905.30
  6. Step 6: Final answer
    x = 258,445.85

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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.