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Finding the Fourth Proportional to 179,422.80, 269,069.40 and 90,646.80

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Solution

The fourth proportional to 179,422.80, 269,069.40 and 90,646.80 is: 135,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,422.80 : 269,069.40 = 90,646.80 : x
  2. Step 2: Convert to fraction form
    179,422.80/269,069.40 = 90,646.80/x
  3. Step 3: Cross multiply
    179,422.80x = 269,069.40 × 90,646.80
  4. Step 4: Simplify right side
    179,422.80x = 24,390,280,087.92
  5. Step 5: Solve for x
    x = 24,390,280,087.92/179,422.80
  6. Step 6: Final answer
    x = 135,937.46

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1.5x scale

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.