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Finding the Fourth Proportional to 454,308.75, 681,659.91 and 243,700.65

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Solution

The fourth proportional to 454,308.75, 681,659.91 and 243,700.65 is: 365,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,308.75 : 681,659.91 = 243,700.65 : x
  2. Step 2: Convert to fraction form
    454,308.75/681,659.91 = 243,700.65/x
  3. Step 3: Cross multiply
    454,308.75x = 681,659.91 × 243,700.65
  4. Step 4: Simplify right side
    454,308.75x = 166,120,963,145.94
  5. Step 5: Solve for x
    x = 166,120,963,145.94/454,308.75
  6. Step 6: Final answer
    x = 365,656.53

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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.