Home / 317,868.54-438,663.24-172,677.04

Finding the Fourth Proportional to 317,868.54, 438,663.24 and 172,677.04

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Solution

The fourth proportional to 317,868.54, 438,663.24 and 172,677.04 is: 238,296.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,868.54 : 438,663.24 = 172,677.04 : x
  2. Step 2: Convert to fraction form
    317,868.54/438,663.24 = 172,677.04/x
  3. Step 3: Cross multiply
    317,868.54x = 438,663.24 × 172,677.04
  4. Step 4: Simplify right side
    317,868.54x = 75,747,069,840.01
  5. Step 5: Solve for x
    x = 75,747,069,840.01/317,868.54
  6. Step 6: Final answer
    x = 238,296.84

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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.