Home / 305,275.46-457,935.05-80,633.66

Finding the Fourth Proportional to 305,275.46, 457,935.05 and 80,633.66

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Solution

The fourth proportional to 305,275.46, 457,935.05 and 80,633.66 is: 120,956.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,275.46 : 457,935.05 = 80,633.66 : x
  2. Step 2: Convert to fraction form
    305,275.46/457,935.05 = 80,633.66/x
  3. Step 3: Cross multiply
    305,275.46x = 457,935.05 × 80,633.66
  4. Step 4: Simplify right side
    305,275.46x = 36,924,979,123.78
  5. Step 5: Solve for x
    x = 36,924,979,123.78/305,275.46
  6. Step 6: Final answer
    x = 120,956.26

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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.