Home / 207,510.60-311,029.78-126,278.46

Finding the Fourth Proportional to 207,510.60, 311,029.78 and 126,278.46

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Solution

The fourth proportional to 207,510.60, 311,029.78 and 126,278.46 is: 189,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,510.60 : 311,029.78 = 126,278.46 : x
  2. Step 2: Convert to fraction form
    207,510.60/311,029.78 = 126,278.46/x
  3. Step 3: Cross multiply
    207,510.60x = 311,029.78 × 126,278.46
  4. Step 4: Simplify right side
    207,510.60x = 39,276,360,223.57
  5. Step 5: Solve for x
    x = 39,276,360,223.57/207,510.60
  6. Step 6: Final answer
    x = 189,274.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.