Home / 317,682.27-438,398.38-172,484.86

Finding the Fourth Proportional to 317,682.27, 438,398.38 and 172,484.86

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Solution

The fourth proportional to 317,682.27, 438,398.38 and 172,484.86 is: 238,027.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,682.27 : 438,398.38 = 172,484.86 : x
  2. Step 2: Convert to fraction form
    317,682.27/438,398.38 = 172,484.86/x
  3. Step 3: Cross multiply
    317,682.27x = 438,398.38 × 172,484.86
  4. Step 4: Simplify right side
    317,682.27x = 75,617,082,169.91
  5. Step 5: Solve for x
    x = 75,617,082,169.91/317,682.27
  6. Step 6: Final answer
    x = 238,027.39

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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.