Home / 330,186.90-495,280.35-282,947.70

Finding the Fourth Proportional to 330,186.90, 495,280.35 and 282,947.70

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Solution

The fourth proportional to 330,186.90, 495,280.35 and 282,947.70 is: 424,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,186.90 : 495,280.35 = 282,947.70 : x
  2. Step 2: Convert to fraction form
    330,186.90/495,280.35 = 282,947.70/x
  3. Step 3: Cross multiply
    330,186.90x = 495,280.35 × 282,947.70
  4. Step 4: Simplify right side
    330,186.90x = 140,138,435,887.70
  5. Step 5: Solve for x
    x = 140,138,435,887.70/330,186.90
  6. Step 6: Final answer
    x = 424,421.55

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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.