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Finding the Fourth Proportional to 256,601.40, 384,902.10 and 151,625.40

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Solution

The fourth proportional to 256,601.40, 384,902.10 and 151,625.40 is: 227,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,601.40 : 384,902.10 = 151,625.40 : x
  2. Step 2: Convert to fraction form
    256,601.40/384,902.10 = 151,625.40/x
  3. Step 3: Cross multiply
    256,601.40x = 384,902.10 × 151,625.40
  4. Step 4: Simplify right side
    256,601.40x = 58,360,934,873.34
  5. Step 5: Solve for x
    x = 58,360,934,873.34/256,601.40
  6. Step 6: Final answer
    x = 227,438.10

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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.