Home / 232,870.78-321,396.42-142,279.12

Finding the Fourth Proportional to 232,870.78, 321,396.42 and 142,279.12

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Solution

The fourth proportional to 232,870.78, 321,396.42 and 142,279.12 is: 196,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,870.78 : 321,396.42 = 142,279.12 : x
  2. Step 2: Convert to fraction form
    232,870.78/321,396.42 = 142,279.12/x
  3. Step 3: Cross multiply
    232,870.78x = 321,396.42 × 142,279.12
  4. Step 4: Simplify right side
    232,870.78x = 45,727,999,808.75
  5. Step 5: Solve for x
    x = 45,727,999,808.75/232,870.78
  6. Step 6: Final answer
    x = 196,366.41

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1.5x scale

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.