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Finding the Fourth Proportional to 279,077.56, 385,118.98 and 158,230.12

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Solution

The fourth proportional to 279,077.56, 385,118.98 and 158,230.12 is: 218,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,077.56 : 385,118.98 = 158,230.12 : x
  2. Step 2: Convert to fraction form
    279,077.56/385,118.98 = 158,230.12/x
  3. Step 3: Cross multiply
    279,077.56x = 385,118.98 × 158,230.12
  4. Step 4: Simplify right side
    279,077.56x = 60,937,422,419.68
  5. Step 5: Solve for x
    x = 60,937,422,419.68/279,077.56
  6. Step 6: Final answer
    x = 218,353.00

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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.