Home / 438,837.49-658,256.14-118,991.17

Finding the Fourth Proportional to 438,837.49, 658,256.14 and 118,991.17

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Solution

The fourth proportional to 438,837.49, 658,256.14 and 118,991.17 is: 178,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,837.49 : 658,256.14 = 118,991.17 : x
  2. Step 2: Convert to fraction form
    438,837.49/658,256.14 = 118,991.17/x
  3. Step 3: Cross multiply
    438,837.49x = 658,256.14 × 118,991.17
  4. Step 4: Simplify right side
    438,837.49x = 78,326,668,258.28
  5. Step 5: Solve for x
    x = 78,326,668,258.28/438,837.49
  6. Step 6: Final answer
    x = 178,486.73

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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.