Home / 330,533.08-495,795.30-81,217.24

Finding the Fourth Proportional to 330,533.08, 495,795.30 and 81,217.24

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Solution

The fourth proportional to 330,533.08, 495,795.30 and 81,217.24 is: 121,824.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,533.08 : 495,795.30 = 81,217.24 : x
  2. Step 2: Convert to fraction form
    330,533.08/495,795.30 = 81,217.24/x
  3. Step 3: Cross multiply
    330,533.08x = 495,795.30 × 81,217.24
  4. Step 4: Simplify right side
    330,533.08x = 40,267,125,870.97
  5. Step 5: Solve for x
    x = 40,267,125,870.97/330,533.08
  6. Step 6: Final answer
    x = 121,824.80

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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.