Home / 317,917.83-438,731.58-172,726.49

Finding the Fourth Proportional to 317,917.83, 438,731.58 and 172,726.49

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Solution

The fourth proportional to 317,917.83, 438,731.58 and 172,726.49 is: 238,365.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,917.83 : 438,731.58 = 172,726.49 : x
  2. Step 2: Convert to fraction form
    317,917.83/438,731.58 = 172,726.49/x
  3. Step 3: Cross multiply
    317,917.83x = 438,731.58 × 172,726.49
  4. Step 4: Simplify right side
    317,917.83x = 75,780,565,964.86
  5. Step 5: Solve for x
    x = 75,780,565,964.86/317,917.83
  6. Step 6: Final answer
    x = 238,365.26

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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.