Home / 317,567.25-438,247.95-172,375.91

Finding the Fourth Proportional to 317,567.25, 438,247.95 and 172,375.91

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Solution

The fourth proportional to 317,567.25, 438,247.95 and 172,375.91 is: 237,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,567.25 : 438,247.95 = 172,375.91 : x
  2. Step 2: Convert to fraction form
    317,567.25/438,247.95 = 172,375.91/x
  3. Step 3: Cross multiply
    317,567.25x = 438,247.95 × 172,375.91
  4. Step 4: Simplify right side
    317,567.25x = 75,543,391,427.42
  5. Step 5: Solve for x
    x = 75,543,391,427.42/317,567.25
  6. Step 6: Final answer
    x = 237,881.56

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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.