Home / 318,115.50-438,990.03-182,144.94

Finding the Fourth Proportional to 318,115.50, 438,990.03 and 182,144.94

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Solution

The fourth proportional to 318,115.50, 438,990.03 and 182,144.94 is: 251,354.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,115.50 : 438,990.03 = 182,144.94 : x
  2. Step 2: Convert to fraction form
    318,115.50/438,990.03 = 182,144.94/x
  3. Step 3: Cross multiply
    318,115.50x = 438,990.03 × 182,144.94
  4. Step 4: Simplify right side
    318,115.50x = 79,959,812,674.95
  5. Step 5: Solve for x
    x = 79,959,812,674.95/318,115.50
  6. Step 6: Final answer
    x = 251,354.66

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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.