Home / 257,016.92-385,562.23-79,537.55

Finding the Fourth Proportional to 257,016.92, 385,562.23 and 79,537.55

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Solution

The fourth proportional to 257,016.92, 385,562.23 and 79,537.55 is: 119,317.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,016.92 : 385,562.23 = 79,537.55 : x
  2. Step 2: Convert to fraction form
    257,016.92/385,562.23 = 79,537.55/x
  3. Step 3: Cross multiply
    257,016.92x = 385,562.23 × 79,537.55
  4. Step 4: Simplify right side
    257,016.92x = 30,666,673,020.08
  5. Step 5: Solve for x
    x = 30,666,673,020.08/257,016.92
  6. Step 6: Final answer
    x = 119,317.72

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1.5x scale

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.