Home / 279,341.25-385,499.68-158,487.63

Finding the Fourth Proportional to 279,341.25, 385,499.68 and 158,487.63

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Solution

The fourth proportional to 279,341.25, 385,499.68 and 158,487.63 is: 218,717.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,341.25 : 385,499.68 = 158,487.63 : x
  2. Step 2: Convert to fraction form
    279,341.25/385,499.68 = 158,487.63/x
  3. Step 3: Cross multiply
    279,341.25x = 385,499.68 × 158,487.63
  4. Step 4: Simplify right side
    279,341.25x = 61,096,930,648.96
  5. Step 5: Solve for x
    x = 61,096,930,648.96/279,341.25
  6. Step 6: Final answer
    x = 218,717.90

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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.