Home / 399,224.67-551,531.03-261,730.27

Finding the Fourth Proportional to 399,224.67, 551,531.03 and 261,730.27

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Solution

The fourth proportional to 399,224.67, 551,531.03 and 261,730.27 is: 361,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,224.67 : 551,531.03 = 261,730.27 : x
  2. Step 2: Convert to fraction form
    399,224.67/551,531.03 = 261,730.27/x
  3. Step 3: Cross multiply
    399,224.67x = 551,531.03 × 261,730.27
  4. Step 4: Simplify right side
    399,224.67x = 144,352,364,776.04
  5. Step 5: Solve for x
    x = 144,352,364,776.04/399,224.67
  6. Step 6: Final answer
    x = 361,581.78

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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.