Home / 268,947.56-403,304.69-91,406.90

Finding the Fourth Proportional to 268,947.56, 403,304.69 and 91,406.90

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Solution

The fourth proportional to 268,947.56, 403,304.69 and 91,406.90 is: 137,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,947.56 : 403,304.69 = 91,406.90 : x
  2. Step 2: Convert to fraction form
    268,947.56/403,304.69 = 91,406.90/x
  3. Step 3: Cross multiply
    268,947.56x = 403,304.69 × 91,406.90
  4. Step 4: Simplify right side
    268,947.56x = 36,864,828,994.80
  5. Step 5: Solve for x
    x = 36,864,828,994.80/268,947.56
  6. Step 6: Final answer
    x = 137,070.70

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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.