Home / 330,429.15-495,644.12-90,545.07

Finding the Fourth Proportional to 330,429.15, 495,644.12 and 90,545.07

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Solution

The fourth proportional to 330,429.15, 495,644.12 and 90,545.07 is: 135,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,429.15 : 495,644.12 = 90,545.07 : x
  2. Step 2: Convert to fraction form
    330,429.15/495,644.12 = 90,545.07/x
  3. Step 3: Cross multiply
    330,429.15x = 495,644.12 × 90,545.07
  4. Step 4: Simplify right side
    330,429.15x = 44,878,131,087.76
  5. Step 5: Solve for x
    x = 44,878,131,087.76/330,429.15
  6. Step 6: Final answer
    x = 135,817.71

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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.