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Finding the Fourth Proportional to 280,183.82, 386,637.91 and 159,354.50

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Solution

The fourth proportional to 280,183.82, 386,637.91 and 159,354.50 is: 219,900.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,183.82 : 386,637.91 = 159,354.50 : x
  2. Step 2: Convert to fraction form
    280,183.82/386,637.91 = 159,354.50/x
  3. Step 3: Cross multiply
    280,183.82x = 386,637.91 × 159,354.50
  4. Step 4: Simplify right side
    280,183.82x = 61,612,488,497.52
  5. Step 5: Solve for x
    x = 61,612,488,497.52/280,183.82
  6. Step 6: Final answer
    x = 219,900.24

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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.