Home / 640,155.12-960,375.58-240,799.20

Finding the Fourth Proportional to 640,155.12, 960,375.58 and 240,799.20

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Solution

The fourth proportional to 640,155.12, 960,375.58 and 240,799.20 is: 361,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,155.12 : 960,375.58 = 240,799.20 : x
  2. Step 2: Convert to fraction form
    640,155.12/960,375.58 = 240,799.20/x
  3. Step 3: Cross multiply
    640,155.12x = 960,375.58 × 240,799.20
  4. Step 4: Simplify right side
    640,155.12x = 231,257,671,363.54
  5. Step 5: Solve for x
    x = 231,257,671,363.54/640,155.12
  6. Step 6: Final answer
    x = 361,252.55

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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.