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Finding the Fourth Proportional to 256,008.64, 353,291.34 and 148,641.52

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Solution

The fourth proportional to 256,008.64, 353,291.34 and 148,641.52 is: 205,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,008.64 : 353,291.34 = 148,641.52 : x
  2. Step 2: Convert to fraction form
    256,008.64/353,291.34 = 148,641.52/x
  3. Step 3: Cross multiply
    256,008.64x = 353,291.34 × 148,641.52
  4. Step 4: Simplify right side
    256,008.64x = 52,513,761,780.44
  5. Step 5: Solve for x
    x = 52,513,761,780.44/256,008.64
  6. Step 6: Final answer
    x = 205,124.96

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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.