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Finding the Fourth Proportional to 179,689.60, 269,496.60 and 90,859.60

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Solution

The fourth proportional to 179,689.60, 269,496.60 and 90,859.60 is: 136,270.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,689.60 : 269,496.60 = 90,859.60 : x
  2. Step 2: Convert to fraction form
    179,689.60/269,496.60 = 90,859.60/x
  3. Step 3: Cross multiply
    179,689.60x = 269,496.60 × 90,859.60
  4. Step 4: Simplify right side
    179,689.60x = 24,486,353,277.36
  5. Step 5: Solve for x
    x = 24,486,353,277.36/179,689.60
  6. Step 6: Final answer
    x = 136,270.29

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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.