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Finding the Fourth Proportional to 323,582.40, 485,200.80 and 136,382.40

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Solution

The fourth proportional to 323,582.40, 485,200.80 and 136,382.40 is: 204,500.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,582.40 : 485,200.80 = 136,382.40 : x
  2. Step 2: Convert to fraction form
    323,582.40/485,200.80 = 136,382.40/x
  3. Step 3: Cross multiply
    323,582.40x = 485,200.80 × 136,382.40
  4. Step 4: Simplify right side
    323,582.40x = 66,172,849,585.92
  5. Step 5: Solve for x
    x = 66,172,849,585.92/323,582.40
  6. Step 6: Final answer
    x = 204,500.77

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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.