Home / 424,743.74-586,135.60-231,143.21

Finding the Fourth Proportional to 424,743.74, 586,135.60 and 231,143.21

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Solution

The fourth proportional to 424,743.74, 586,135.60 and 231,143.21 is: 318,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,743.74 : 586,135.60 = 231,143.21 : x
  2. Step 2: Convert to fraction form
    424,743.74/586,135.60 = 231,143.21/x
  3. Step 3: Cross multiply
    424,743.74x = 586,135.60 × 231,143.21
  4. Step 4: Simplify right side
    424,743.74x = 135,481,264,079.28
  5. Step 5: Solve for x
    x = 135,481,264,079.28/424,743.74
  6. Step 6: Final answer
    x = 318,971.77

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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.