Home / 289,451.27-399,637.67-180,721.14

Finding the Fourth Proportional to 289,451.27, 399,637.67 and 180,721.14

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Solution

The fourth proportional to 289,451.27, 399,637.67 and 180,721.14 is: 249,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,451.27 : 399,637.67 = 180,721.14 : x
  2. Step 2: Convert to fraction form
    289,451.27/399,637.67 = 180,721.14/x
  3. Step 3: Cross multiply
    289,451.27x = 399,637.67 × 180,721.14
  4. Step 4: Simplify right side
    289,451.27x = 72,222,975,761.15
  5. Step 5: Solve for x
    x = 72,222,975,761.15/289,451.27
  6. Step 6: Final answer
    x = 249,516.88

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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.