Home / 231,828.23-320,032.53-155,397.25

Finding the Fourth Proportional to 231,828.23, 320,032.53 and 155,397.25

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Solution

The fourth proportional to 231,828.23, 320,032.53 and 155,397.25 is: 214,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.23 : 320,032.53 = 155,397.25 : x
  2. Step 2: Convert to fraction form
    231,828.23/320,032.53 = 155,397.25/x
  3. Step 3: Cross multiply
    231,828.23x = 320,032.53 × 155,397.25
  4. Step 4: Simplify right side
    231,828.23x = 49,732,175,035.53
  5. Step 5: Solve for x
    x = 49,732,175,035.53/231,828.23
  6. Step 6: Final answer
    x = 214,521.65

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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.