Home / 317,768.61-438,519.18-172,573.37

Finding the Fourth Proportional to 317,768.61, 438,519.18 and 172,573.37

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Solution

The fourth proportional to 317,768.61, 438,519.18 and 172,573.37 is: 238,150.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,768.61 : 438,519.18 = 172,573.37 : x
  2. Step 2: Convert to fraction form
    317,768.61/438,519.18 = 172,573.37/x
  3. Step 3: Cross multiply
    317,768.61x = 438,519.18 × 172,573.37
  4. Step 4: Simplify right side
    317,768.61x = 75,676,732,702.24
  5. Step 5: Solve for x
    x = 75,676,732,702.24/317,768.61
  6. Step 6: Final answer
    x = 238,150.44

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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.