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Finding the Fourth Proportional to 287,179.84, 396,301.61 and 179,809.08

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Solution

The fourth proportional to 287,179.84, 396,301.61 and 179,809.08 is: 248,132.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,179.84 : 396,301.61 = 179,809.08 : x
  2. Step 2: Convert to fraction form
    287,179.84/396,301.61 = 179,809.08/x
  3. Step 3: Cross multiply
    287,179.84x = 396,301.61 × 179,809.08
  4. Step 4: Simplify right side
    287,179.84x = 71,258,625,915.11
  5. Step 5: Solve for x
    x = 71,258,625,915.11/287,179.84
  6. Step 6: Final answer
    x = 248,132.41

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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.