Home / 279,077.40-385,118.82-158,230.26

Finding the Fourth Proportional to 279,077.40, 385,118.82 and 158,230.26

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Solution

The fourth proportional to 279,077.40, 385,118.82 and 158,230.26 is: 218,353.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,077.40 : 385,118.82 = 158,230.26 : x
  2. Step 2: Convert to fraction form
    279,077.40/385,118.82 = 158,230.26/x
  3. Step 3: Cross multiply
    279,077.40x = 385,118.82 × 158,230.26
  4. Step 4: Simplify right side
    279,077.40x = 60,937,451,019.49
  5. Step 5: Solve for x
    x = 60,937,451,019.49/279,077.40
  6. Step 6: Final answer
    x = 218,353.23

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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.