Home / 481,508.16-721,868.08-181,818.68

Finding the Fourth Proportional to 481,508.16, 721,868.08 and 181,818.68

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Solution

The fourth proportional to 481,508.16, 721,868.08 and 181,818.68 is: 272,579.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,508.16 : 721,868.08 = 181,818.68 : x
  2. Step 2: Convert to fraction form
    481,508.16/721,868.08 = 181,818.68/x
  3. Step 3: Cross multiply
    481,508.16x = 721,868.08 × 181,818.68
  4. Step 4: Simplify right side
    481,508.16x = 131,249,101,439.73
  5. Step 5: Solve for x
    x = 131,249,101,439.73/481,508.16
  6. Step 6: Final answer
    x = 272,579.18

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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.