Home / 317,770.62-438,521.94-172,575.38

Finding the Fourth Proportional to 317,770.62, 438,521.94 and 172,575.38

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Solution

The fourth proportional to 317,770.62, 438,521.94 and 172,575.38 is: 238,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,770.62 : 438,521.94 = 172,575.38 : x
  2. Step 2: Convert to fraction form
    317,770.62/438,521.94 = 172,575.38/x
  3. Step 3: Cross multiply
    317,770.62x = 438,521.94 × 172,575.38
  4. Step 4: Simplify right side
    317,770.62x = 75,678,090,433.84
  5. Step 5: Solve for x
    x = 75,678,090,433.84/317,770.62
  6. Step 6: Final answer
    x = 238,153.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.