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Finding the Fourth Proportional to 280,149.98, 386,625.26 and 159,302.52

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Solution

The fourth proportional to 280,149.98, 386,625.26 and 159,302.52 is: 219,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.98 : 386,625.26 = 159,302.52 : x
  2. Step 2: Convert to fraction form
    280,149.98/386,625.26 = 159,302.52/x
  3. Step 3: Cross multiply
    280,149.98x = 386,625.26 × 159,302.52
  4. Step 4: Simplify right side
    280,149.98x = 61,590,378,213.66
  5. Step 5: Solve for x
    x = 61,590,378,213.66/280,149.98
  6. Step 6: Final answer
    x = 219,847.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.