Home / 330,522.08-495,778.80-81,206.24

Finding the Fourth Proportional to 330,522.08, 495,778.80 and 81,206.24

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Solution

The fourth proportional to 330,522.08, 495,778.80 and 81,206.24 is: 121,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,522.08 : 495,778.80 = 81,206.24 : x
  2. Step 2: Convert to fraction form
    330,522.08/495,778.80 = 81,206.24/x
  3. Step 3: Cross multiply
    330,522.08x = 495,778.80 × 81,206.24
  4. Step 4: Simplify right side
    330,522.08x = 40,260,332,219.71
  5. Step 5: Solve for x
    x = 40,260,332,219.71/330,522.08
  6. Step 6: Final answer
    x = 121,808.30

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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.