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Finding the Fourth Proportional to 323,523.60, 485,285.40 and 101,878.80

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Solution

The fourth proportional to 323,523.60, 485,285.40 and 101,878.80 is: 152,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,523.60 : 485,285.40 = 101,878.80 : x
  2. Step 2: Convert to fraction form
    323,523.60/485,285.40 = 101,878.80/x
  3. Step 3: Cross multiply
    323,523.60x = 485,285.40 × 101,878.80
  4. Step 4: Simplify right side
    323,523.60x = 49,440,294,209.52
  5. Step 5: Solve for x
    x = 49,440,294,209.52/323,523.60
  6. Step 6: Final answer
    x = 152,818.20

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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.