Home / 323,585.28-485,379-98,944.80

Finding the Fourth Proportional to 323,585.28, 485,379 and 98,944.80

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Solution

The fourth proportional to 323,585.28, 485,379 and 98,944.80 is: 148,417.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,585.28 : 485,379 = 98,944.80 : x
  2. Step 2: Convert to fraction form
    323,585.28/485,379 = 98,944.80/x
  3. Step 3: Cross multiply
    323,585.28x = 485,379 × 98,944.80
  4. Step 4: Simplify right side
    323,585.28x = 48,025,728,079.20
  5. Step 5: Solve for x
    x = 48,025,728,079.20/323,585.28
  6. Step 6: Final answer
    x = 148,417.53

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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.