Home / 317,572.43-438,233.55-188,516.30

Finding the Fourth Proportional to 317,572.43, 438,233.55 and 188,516.30

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Solution

The fourth proportional to 317,572.43, 438,233.55 and 188,516.30 is: 260,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,572.43 : 438,233.55 = 188,516.30 : x
  2. Step 2: Convert to fraction form
    317,572.43/438,233.55 = 188,516.30/x
  3. Step 3: Cross multiply
    317,572.43x = 438,233.55 × 188,516.30
  4. Step 4: Simplify right side
    317,572.43x = 82,614,167,381.87
  5. Step 5: Solve for x
    x = 82,614,167,381.87/317,572.43
  6. Step 6: Final answer
    x = 260,142.76

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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.