Home / 287,979.15-431,979.66-110,504.10

Finding the Fourth Proportional to 287,979.15, 431,979.66 and 110,504.10

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Solution

The fourth proportional to 287,979.15, 431,979.66 and 110,504.10 is: 165,760.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,979.15 : 431,979.66 = 110,504.10 : x
  2. Step 2: Convert to fraction form
    287,979.15/431,979.66 = 110,504.10/x
  3. Step 3: Cross multiply
    287,979.15x = 431,979.66 × 110,504.10
  4. Step 4: Simplify right side
    287,979.15x = 47,735,523,546.61
  5. Step 5: Solve for x
    x = 47,735,523,546.61/287,979.15
  6. Step 6: Final answer
    x = 165,760.35

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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.