Home / 287,788.83-431,437.06-110,423.13

Finding the Fourth Proportional to 287,788.83, 431,437.06 and 110,423.13

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Solution

The fourth proportional to 287,788.83, 431,437.06 and 110,423.13 is: 165,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,788.83 : 431,437.06 = 110,423.13 : x
  2. Step 2: Convert to fraction form
    287,788.83/431,437.06 = 110,423.13/x
  3. Step 3: Cross multiply
    287,788.83x = 431,437.06 × 110,423.13
  4. Step 4: Simplify right side
    287,788.83x = 47,640,630,563.20
  5. Step 5: Solve for x
    x = 47,640,630,563.20/287,788.83
  6. Step 6: Final answer
    x = 165,540.24

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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.