Home / 311,965.42-467,948.30-87,359.02

Finding the Fourth Proportional to 311,965.42, 467,948.30 and 87,359.02

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Solution

The fourth proportional to 311,965.42, 467,948.30 and 87,359.02 is: 131,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,965.42 : 467,948.30 = 87,359.02 : x
  2. Step 2: Convert to fraction form
    311,965.42/467,948.30 = 87,359.02/x
  3. Step 3: Cross multiply
    311,965.42x = 467,948.30 × 87,359.02
  4. Step 4: Simplify right side
    311,965.42x = 40,879,504,898.67
  5. Step 5: Solve for x
    x = 40,879,504,898.67/311,965.42
  6. Step 6: Final answer
    x = 131,038.58

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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.