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Finding the Fourth Proportional to 384,987.60, 577,308.60 and 148,251.60

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Solution

The fourth proportional to 384,987.60, 577,308.60 and 148,251.60 is: 222,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,987.60 : 577,308.60 = 148,251.60 : x
  2. Step 2: Convert to fraction form
    384,987.60/577,308.60 = 148,251.60/x
  3. Step 3: Cross multiply
    384,987.60x = 577,308.60 × 148,251.60
  4. Step 4: Simplify right side
    384,987.60x = 85,586,923,643.76
  5. Step 5: Solve for x
    x = 85,586,923,643.76/384,987.60
  6. Step 6: Final answer
    x = 222,310.86

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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.