Home / 330,022.08-495,028.80-80,706.24

Finding the Fourth Proportional to 330,022.08, 495,028.80 and 80,706.24

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Solution

The fourth proportional to 330,022.08, 495,028.80 and 80,706.24 is: 121,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.08 : 495,028.80 = 80,706.24 : x
  2. Step 2: Convert to fraction form
    330,022.08/495,028.80 = 80,706.24/x
  3. Step 3: Cross multiply
    330,022.08x = 495,028.80 × 80,706.24
  4. Step 4: Simplify right side
    330,022.08x = 39,951,913,139.71
  5. Step 5: Solve for x
    x = 39,951,913,139.71/330,022.08
  6. Step 6: Final answer
    x = 121,058.30

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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.