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Finding the Fourth Proportional to 256,484.32, 384,725.85 and 240,877.75

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Solution

The fourth proportional to 256,484.32, 384,725.85 and 240,877.75 is: 361,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,484.32 : 384,725.85 = 240,877.75 : x
  2. Step 2: Convert to fraction form
    256,484.32/384,725.85 = 240,877.75/x
  3. Step 3: Cross multiply
    256,484.32x = 384,725.85 × 240,877.75
  4. Step 4: Simplify right side
    256,484.32x = 92,671,897,326.03
  5. Step 5: Solve for x
    x = 92,671,897,326.03/256,484.32
  6. Step 6: Final answer
    x = 361,316.03

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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.