Home / 330,281.24-495,295.08-140,621.36

Finding the Fourth Proportional to 330,281.24, 495,295.08 and 140,621.36

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Solution

The fourth proportional to 330,281.24, 495,295.08 and 140,621.36 is: 210,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,281.24 : 495,295.08 = 140,621.36 : x
  2. Step 2: Convert to fraction form
    330,281.24/495,295.08 = 140,621.36/x
  3. Step 3: Cross multiply
    330,281.24x = 495,295.08 × 140,621.36
  4. Step 4: Simplify right side
    330,281.24x = 69,649,067,750.91
  5. Step 5: Solve for x
    x = 69,649,067,750.91/330,281.24
  6. Step 6: Final answer
    x = 210,878.06

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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.