Home / 257,964.72-387,462.75-155,586.70

Finding the Fourth Proportional to 257,964.72, 387,462.75 and 155,586.70

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Solution

The fourth proportional to 257,964.72, 387,462.75 and 155,586.70 is: 233,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,964.72 : 387,462.75 = 155,586.70 : x
  2. Step 2: Convert to fraction form
    257,964.72/387,462.75 = 155,586.70/x
  3. Step 3: Cross multiply
    257,964.72x = 387,462.75 × 155,586.70
  4. Step 4: Simplify right side
    257,964.72x = 60,284,050,645.43
  5. Step 5: Solve for x
    x = 60,284,050,645.43/257,964.72
  6. Step 6: Final answer
    x = 233,691.07

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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.