Home / 442,888.11-663,333.37-205,731.72

Finding the Fourth Proportional to 442,888.11, 663,333.37 and 205,731.72

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Solution

The fourth proportional to 442,888.11, 663,333.37 and 205,731.72 is: 308,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,888.11 : 663,333.37 = 205,731.72 : x
  2. Step 2: Convert to fraction form
    442,888.11/663,333.37 = 205,731.72/x
  3. Step 3: Cross multiply
    442,888.11x = 663,333.37 × 205,731.72
  4. Step 4: Simplify right side
    442,888.11x = 136,468,717,888.16
  5. Step 5: Solve for x
    x = 136,468,717,888.16/442,888.11
  6. Step 6: Final answer
    x = 308,133.62

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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.