Home / 279,088.17-385,129.94-158,237.57

Finding the Fourth Proportional to 279,088.17, 385,129.94 and 158,237.57

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Solution

The fourth proportional to 279,088.17, 385,129.94 and 158,237.57 is: 218,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,088.17 : 385,129.94 = 158,237.57 : x
  2. Step 2: Convert to fraction form
    279,088.17/385,129.94 = 158,237.57/x
  3. Step 3: Cross multiply
    279,088.17x = 385,129.94 × 158,237.57
  4. Step 4: Simplify right side
    279,088.17x = 60,942,023,123.01
  5. Step 5: Solve for x
    x = 60,942,023,123.01/279,088.17
  6. Step 6: Final answer
    x = 218,361.18

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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.