Home / 318,101.72-438,981.30-182,137.80

Finding the Fourth Proportional to 318,101.72, 438,981.30 and 182,137.80

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Solution

The fourth proportional to 318,101.72, 438,981.30 and 182,137.80 is: 251,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,101.72 : 438,981.30 = 182,137.80 : x
  2. Step 2: Convert to fraction form
    318,101.72/438,981.30 = 182,137.80/x
  3. Step 3: Cross multiply
    318,101.72x = 438,981.30 × 182,137.80
  4. Step 4: Simplify right side
    318,101.72x = 79,955,088,223.14
  5. Step 5: Solve for x
    x = 79,955,088,223.14/318,101.72
  6. Step 6: Final answer
    x = 251,350.69

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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.