Home / 280,956.44-387,707.64-160,123.88

Finding the Fourth Proportional to 280,956.44, 387,707.64 and 160,123.88

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Solution

The fourth proportional to 280,956.44, 387,707.64 and 160,123.88 is: 220,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,956.44 : 387,707.64 = 160,123.88 : x
  2. Step 2: Convert to fraction form
    280,956.44/387,707.64 = 160,123.88/x
  3. Step 3: Cross multiply
    280,956.44x = 387,707.64 × 160,123.88
  4. Step 4: Simplify right side
    280,956.44x = 62,081,251,622.44
  5. Step 5: Solve for x
    x = 62,081,251,622.44/280,956.44
  6. Step 6: Final answer
    x = 220,963.97

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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.