Home / 279,006.53-385,011.78-156,492.15

Finding the Fourth Proportional to 279,006.53, 385,011.78 and 156,492.15

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Solution

The fourth proportional to 279,006.53, 385,011.78 and 156,492.15 is: 215,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,006.53 : 385,011.78 = 156,492.15 : x
  2. Step 2: Convert to fraction form
    279,006.53/385,011.78 = 156,492.15/x
  3. Step 3: Cross multiply
    279,006.53x = 385,011.78 × 156,492.15
  4. Step 4: Simplify right side
    279,006.53x = 60,251,322,242.85
  5. Step 5: Solve for x
    x = 60,251,322,242.85/279,006.53
  6. Step 6: Final answer
    x = 215,949.51

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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.