Home / 317,773.38-438,525.75-172,578.15

Finding the Fourth Proportional to 317,773.38, 438,525.75 and 172,578.15

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Solution

The fourth proportional to 317,773.38, 438,525.75 and 172,578.15 is: 238,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,773.38 : 438,525.75 = 172,578.15 : x
  2. Step 2: Convert to fraction form
    317,773.38/438,525.75 = 172,578.15/x
  3. Step 3: Cross multiply
    317,773.38x = 438,525.75 × 172,578.15
  4. Step 4: Simplify right side
    317,773.38x = 75,679,962,662.36
  5. Step 5: Solve for x
    x = 75,679,962,662.36/317,773.38
  6. Step 6: Final answer
    x = 238,157.02

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1.5x scale

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.