Home / 291,382.11-437,135.72-165,082.86

Finding the Fourth Proportional to 291,382.11, 437,135.72 and 165,082.86

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Solution

The fourth proportional to 291,382.11, 437,135.72 and 165,082.86 is: 247,659.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,382.11 : 437,135.72 = 165,082.86 : x
  2. Step 2: Convert to fraction form
    291,382.11/437,135.72 = 165,082.86/x
  3. Step 3: Cross multiply
    291,382.11x = 437,135.72 × 165,082.86
  4. Step 4: Simplify right side
    291,382.11x = 72,163,614,040.34
  5. Step 5: Solve for x
    x = 72,163,614,040.34/291,382.11
  6. Step 6: Final answer
    x = 247,659.73

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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.