Home / 256,875.40-354,498.90-158,780.44

Finding the Fourth Proportional to 256,875.40, 354,498.90 and 158,780.44

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Solution

The fourth proportional to 256,875.40, 354,498.90 and 158,780.44 is: 219,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,875.40 : 354,498.90 = 158,780.44 : x
  2. Step 2: Convert to fraction form
    256,875.40/354,498.90 = 158,780.44/x
  3. Step 3: Cross multiply
    256,875.40x = 354,498.90 × 158,780.44
  4. Step 4: Simplify right side
    256,875.40x = 56,287,491,321.52
  5. Step 5: Solve for x
    x = 56,287,491,321.52/256,875.40
  6. Step 6: Final answer
    x = 219,123.71

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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.