Home / 330,187.10-495,280.65-80,869.10

Finding the Fourth Proportional to 330,187.10, 495,280.65 and 80,869.10

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Solution

The fourth proportional to 330,187.10, 495,280.65 and 80,869.10 is: 121,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,187.10 : 495,280.65 = 80,869.10 : x
  2. Step 2: Convert to fraction form
    330,187.10/495,280.65 = 80,869.10/x
  3. Step 3: Cross multiply
    330,187.10x = 495,280.65 × 80,869.10
  4. Step 4: Simplify right side
    330,187.10x = 40,052,900,412.92
  5. Step 5: Solve for x
    x = 40,052,900,412.92/330,187.10
  6. Step 6: Final answer
    x = 121,303.65

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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.