Home / 438,332.58-657,517.62-172,150.80

Finding the Fourth Proportional to 438,332.58, 657,517.62 and 172,150.80

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Solution

The fourth proportional to 438,332.58, 657,517.62 and 172,150.80 is: 258,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,332.58 : 657,517.62 = 172,150.80 : x
  2. Step 2: Convert to fraction form
    438,332.58/657,517.62 = 172,150.80/x
  3. Step 3: Cross multiply
    438,332.58x = 657,517.62 × 172,150.80
  4. Step 4: Simplify right side
    438,332.58x = 113,192,184,297.10
  5. Step 5: Solve for x
    x = 113,192,184,297.10/438,332.58
  6. Step 6: Final answer
    x = 258,233.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.