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Finding the Fourth Proportional to 276,366.70, 413,885.73 and 157,678.21

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Solution

The fourth proportional to 276,366.70, 413,885.73 and 157,678.21 is: 236,138.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,366.70 : 413,885.73 = 157,678.21 : x
  2. Step 2: Convert to fraction form
    276,366.70/413,885.73 = 157,678.21/x
  3. Step 3: Cross multiply
    276,366.70x = 413,885.73 × 157,678.21
  4. Step 4: Simplify right side
    276,366.70x = 65,260,761,050.94
  5. Step 5: Solve for x
    x = 65,260,761,050.94/276,366.70
  6. Step 6: Final answer
    x = 236,138.29

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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.