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Finding the Fourth Proportional to 323,852.10, 485,778.15 and 256,200.90

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Solution

The fourth proportional to 323,852.10, 485,778.15 and 256,200.90 is: 384,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,852.10 : 485,778.15 = 256,200.90 : x
  2. Step 2: Convert to fraction form
    323,852.10/485,778.15 = 256,200.90/x
  3. Step 3: Cross multiply
    323,852.10x = 485,778.15 × 256,200.90
  4. Step 4: Simplify right side
    323,852.10x = 124,456,799,230.34
  5. Step 5: Solve for x
    x = 124,456,799,230.34/323,852.10
  6. Step 6: Final answer
    x = 384,301.35

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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.