Home / 318,145.46-438,995.01-187,245.27

Finding the Fourth Proportional to 318,145.46, 438,995.01 and 187,245.27

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Solution

The fourth proportional to 318,145.46, 438,995.01 and 187,245.27 is: 258,371.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,145.46 : 438,995.01 = 187,245.27 : x
  2. Step 2: Convert to fraction form
    318,145.46/438,995.01 = 187,245.27/x
  3. Step 3: Cross multiply
    318,145.46x = 438,995.01 × 187,245.27
  4. Step 4: Simplify right side
    318,145.46x = 82,199,739,176.10
  5. Step 5: Solve for x
    x = 82,199,739,176.10/318,145.46
  6. Step 6: Final answer
    x = 258,371.57

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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.