Home / 279,309.75-385,444.21-151,983.15

Finding the Fourth Proportional to 279,309.75, 385,444.21 and 151,983.15

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Solution

The fourth proportional to 279,309.75, 385,444.21 and 151,983.15 is: 209,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,309.75 : 385,444.21 = 151,983.15 : x
  2. Step 2: Convert to fraction form
    279,309.75/385,444.21 = 151,983.15/x
  3. Step 3: Cross multiply
    279,309.75x = 385,444.21 × 151,983.15
  4. Step 4: Simplify right side
    279,309.75x = 58,581,025,185.06
  5. Step 5: Solve for x
    x = 58,581,025,185.06/279,309.75
  6. Step 6: Final answer
    x = 209,734.98

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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.