Home / 268,977.12-371,191.18-148,129.64

Finding the Fourth Proportional to 268,977.12, 371,191.18 and 148,129.64

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Solution

The fourth proportional to 268,977.12, 371,191.18 and 148,129.64 is: 204,420.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,977.12 : 371,191.18 = 148,129.64 : x
  2. Step 2: Convert to fraction form
    268,977.12/371,191.18 = 148,129.64/x
  3. Step 3: Cross multiply
    268,977.12x = 371,191.18 × 148,129.64
  4. Step 4: Simplify right side
    268,977.12x = 54,984,415,864.58
  5. Step 5: Solve for x
    x = 54,984,415,864.58/268,977.12
  6. Step 6: Final answer
    x = 204,420.42

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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.