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Finding the Fourth Proportional to 576,205.65, 864,308.48 and 155,480.85

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Solution

The fourth proportional to 576,205.65, 864,308.48 and 155,480.85 is: 233,221.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,205.65 : 864,308.48 = 155,480.85 : x
  2. Step 2: Convert to fraction form
    576,205.65/864,308.48 = 155,480.85/x
  3. Step 3: Cross multiply
    576,205.65x = 864,308.48 × 155,480.85
  4. Step 4: Simplify right side
    576,205.65x = 134,383,416,355.20
  5. Step 5: Solve for x
    x = 134,383,416,355.20/576,205.65
  6. Step 6: Final answer
    x = 233,221.28

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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.