Home / 287,146.22-396,255.04-159,819.08

Finding the Fourth Proportional to 287,146.22, 396,255.04 and 159,819.08

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Solution

The fourth proportional to 287,146.22, 396,255.04 and 159,819.08 is: 220,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,146.22 : 396,255.04 = 159,819.08 : x
  2. Step 2: Convert to fraction form
    287,146.22/396,255.04 = 159,819.08/x
  3. Step 3: Cross multiply
    287,146.22x = 396,255.04 × 159,819.08
  4. Step 4: Simplify right side
    287,146.22x = 63,329,113,557.34
  5. Step 5: Solve for x
    x = 63,329,113,557.34/287,146.22
  6. Step 6: Final answer
    x = 220,546.57

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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.