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Finding the Fourth Proportional to 276,687.70, 415,031.55 and 227,480.20

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Solution

The fourth proportional to 276,687.70, 415,031.55 and 227,480.20 is: 341,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,687.70 : 415,031.55 = 227,480.20 : x
  2. Step 2: Convert to fraction form
    276,687.70/415,031.55 = 227,480.20/x
  3. Step 3: Cross multiply
    276,687.70x = 415,031.55 × 227,480.20
  4. Step 4: Simplify right side
    276,687.70x = 94,411,460,000.31
  5. Step 5: Solve for x
    x = 94,411,460,000.31/276,687.70
  6. Step 6: Final answer
    x = 341,220.30

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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.