Home / 317,535.93-438,184.62-172,338.42

Finding the Fourth Proportional to 317,535.93, 438,184.62 and 172,338.42

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Solution

The fourth proportional to 317,535.93, 438,184.62 and 172,338.42 is: 237,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,535.93 : 438,184.62 = 172,338.42 : x
  2. Step 2: Convert to fraction form
    317,535.93/438,184.62 = 172,338.42/x
  3. Step 3: Cross multiply
    317,535.93x = 438,184.62 × 172,338.42
  4. Step 4: Simplify right side
    317,535.93x = 75,516,045,079.10
  5. Step 5: Solve for x
    x = 75,516,045,079.10/317,535.93
  6. Step 6: Final answer
    x = 237,818.90

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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.