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Finding the Fourth Proportional to 276,811.40, 415,217.10 and 150,512.15

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Solution

The fourth proportional to 276,811.40, 415,217.10 and 150,512.15 is: 225,768.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,811.40 : 415,217.10 = 150,512.15 : x
  2. Step 2: Convert to fraction form
    276,811.40/415,217.10 = 150,512.15/x
  3. Step 3: Cross multiply
    276,811.40x = 415,217.10 × 150,512.15
  4. Step 4: Simplify right side
    276,811.40x = 62,495,218,437.77
  5. Step 5: Solve for x
    x = 62,495,218,437.77/276,811.40
  6. Step 6: Final answer
    x = 225,768.23

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1.5x scale

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.