Home / 235,431.80-353,342.10-109,266.20

Finding the Fourth Proportional to 235,431.80, 353,342.10 and 109,266.20

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Solution

The fourth proportional to 235,431.80, 353,342.10 and 109,266.20 is: 163,989.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,431.80 : 353,342.10 = 109,266.20 : x
  2. Step 2: Convert to fraction form
    235,431.80/353,342.10 = 109,266.20/x
  3. Step 3: Cross multiply
    235,431.80x = 353,342.10 × 109,266.20
  4. Step 4: Simplify right side
    235,431.80x = 38,608,348,567.02
  5. Step 5: Solve for x
    x = 38,608,348,567.02/235,431.80
  6. Step 6: Final answer
    x = 163,989.52

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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.