Home / 231,828.14-320,032.40-155,397.17

Finding the Fourth Proportional to 231,828.14, 320,032.40 and 155,397.17

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Solution

The fourth proportional to 231,828.14, 320,032.40 and 155,397.17 is: 214,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,828.14 : 320,032.40 = 155,397.17 : x
  2. Step 2: Convert to fraction form
    231,828.14/320,032.40 = 155,397.17/x
  3. Step 3: Cross multiply
    231,828.14x = 320,032.40 × 155,397.17
  4. Step 4: Simplify right side
    231,828.14x = 49,732,126,891.16
  5. Step 5: Solve for x
    x = 49,732,126,891.16/231,828.14
  6. Step 6: Final answer
    x = 214,521.53

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1.5x scale

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.