Home / 279,217.14-385,232.65-158,348.94

Finding the Fourth Proportional to 279,217.14, 385,232.65 and 158,348.94

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Solution

The fourth proportional to 279,217.14, 385,232.65 and 158,348.94 is: 218,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,217.14 : 385,232.65 = 158,348.94 : x
  2. Step 2: Convert to fraction form
    279,217.14/385,232.65 = 158,348.94/x
  3. Step 3: Cross multiply
    279,217.14x = 385,232.65 × 158,348.94
  4. Step 4: Simplify right side
    279,217.14x = 61,001,181,780.89
  5. Step 5: Solve for x
    x = 61,001,181,780.89/279,217.14
  6. Step 6: Final answer
    x = 218,472.20

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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.