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Finding the Fourth Proportional to 250,679.32, 376,257.70 and 155,621.78

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Solution

The fourth proportional to 250,679.32, 376,257.70 and 155,621.78 is: 233,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,679.32 : 376,257.70 = 155,621.78 : x
  2. Step 2: Convert to fraction form
    250,679.32/376,257.70 = 155,621.78/x
  3. Step 3: Cross multiply
    250,679.32x = 376,257.70 × 155,621.78
  4. Step 4: Simplify right side
    250,679.32x = 58,553,893,012.71
  5. Step 5: Solve for x
    x = 58,553,893,012.71/250,679.32
  6. Step 6: Final answer
    x = 233,580.87

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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.