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Finding the Fourth Proportional to 256,560.10, 384,677.14 and 225,033.48

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Solution

The fourth proportional to 256,560.10, 384,677.14 and 225,033.48 is: 337,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,560.10 : 384,677.14 = 225,033.48 : x
  2. Step 2: Convert to fraction form
    256,560.10/384,677.14 = 225,033.48/x
  3. Step 3: Cross multiply
    256,560.10x = 384,677.14 × 225,033.48
  4. Step 4: Simplify right side
    256,560.10x = 86,565,235,490.65
  5. Step 5: Solve for x
    x = 86,565,235,490.65/256,560.10
  6. Step 6: Final answer
    x = 337,407.24

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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.