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Finding the Fourth Proportional to 256,280.76, 384,422.76 and 168,094.44

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Solution

The fourth proportional to 256,280.76, 384,422.76 and 168,094.44 is: 252,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,280.76 : 384,422.76 = 168,094.44 : x
  2. Step 2: Convert to fraction form
    256,280.76/384,422.76 = 168,094.44/x
  3. Step 3: Cross multiply
    256,280.76x = 384,422.76 × 168,094.44
  4. Step 4: Simplify right side
    256,280.76x = 64,619,328,565.45
  5. Step 5: Solve for x
    x = 64,619,328,565.45/256,280.76
  6. Step 6: Final answer
    x = 252,142.72

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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.