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Finding the Fourth Proportional to 380,792.30, 571,194.52 and 144,071.42

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Solution

The fourth proportional to 380,792.30, 571,194.52 and 144,071.42 is: 216,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,792.30 : 571,194.52 = 144,071.42 : x
  2. Step 2: Convert to fraction form
    380,792.30/571,194.52 = 144,071.42/x
  3. Step 3: Cross multiply
    380,792.30x = 571,194.52 × 144,071.42
  4. Step 4: Simplify right side
    380,792.30x = 82,292,802,376.47
  5. Step 5: Solve for x
    x = 82,292,802,376.47/380,792.30
  6. Step 6: Final answer
    x = 216,109.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.