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Finding the Fourth Proportional to 256,471.22, 354,029.06 and 229,566.26

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Solution

The fourth proportional to 256,471.22, 354,029.06 and 229,566.26 is: 316,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,471.22 : 354,029.06 = 229,566.26 : x
  2. Step 2: Convert to fraction form
    256,471.22/354,029.06 = 229,566.26/x
  3. Step 3: Cross multiply
    256,471.22x = 354,029.06 × 229,566.26
  4. Step 4: Simplify right side
    256,471.22x = 81,273,127,235.52
  5. Step 5: Solve for x
    x = 81,273,127,235.52/256,471.22
  6. Step 6: Final answer
    x = 316,889.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.