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Finding the Fourth Proportional to 280,181.58, 386,648.71 and 159,322.88

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Solution

The fourth proportional to 280,181.58, 386,648.71 and 159,322.88 is: 219,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,181.58 : 386,648.71 = 159,322.88 : x
  2. Step 2: Convert to fraction form
    280,181.58/386,648.71 = 159,322.88/x
  3. Step 3: Cross multiply
    280,181.58x = 386,648.71 × 159,322.88
  4. Step 4: Simplify right side
    280,181.58x = 61,601,986,025.48
  5. Step 5: Solve for x
    x = 61,601,986,025.48/280,181.58
  6. Step 6: Final answer
    x = 219,864.51

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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.