Home / 317,771.12-438,522.64-172,575.89

Finding the Fourth Proportional to 317,771.12, 438,522.64 and 172,575.89

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Solution

The fourth proportional to 317,771.12, 438,522.64 and 172,575.89 is: 238,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,771.12 : 438,522.64 = 172,575.89 : x
  2. Step 2: Convert to fraction form
    317,771.12/438,522.64 = 172,575.89/x
  3. Step 3: Cross multiply
    317,771.12x = 438,522.64 × 172,575.89
  4. Step 4: Simplify right side
    317,771.12x = 75,678,434,874.30
  5. Step 5: Solve for x
    x = 75,678,434,874.30/317,771.12
  6. Step 6: Final answer
    x = 238,153.91

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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.