Home / 175,280.40-262,920.60-128,278.80

Finding the Fourth Proportional to 175,280.40, 262,920.60 and 128,278.80

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Solution

The fourth proportional to 175,280.40, 262,920.60 and 128,278.80 is: 192,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,280.40 : 262,920.60 = 128,278.80 : x
  2. Step 2: Convert to fraction form
    175,280.40/262,920.60 = 128,278.80/x
  3. Step 3: Cross multiply
    175,280.40x = 262,920.60 × 128,278.80
  4. Step 4: Simplify right side
    175,280.40x = 33,727,139,063.28
  5. Step 5: Solve for x
    x = 33,727,139,063.28/175,280.40
  6. Step 6: Final answer
    x = 192,418.20

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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.