Home / 218,830.16-328,262.18-83,958.80

Finding the Fourth Proportional to 218,830.16, 328,262.18 and 83,958.80

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Solution

The fourth proportional to 218,830.16, 328,262.18 and 83,958.80 is: 125,944.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,830.16 : 328,262.18 = 83,958.80 : x
  2. Step 2: Convert to fraction form
    218,830.16/328,262.18 = 83,958.80/x
  3. Step 3: Cross multiply
    218,830.16x = 328,262.18 × 83,958.80
  4. Step 4: Simplify right side
    218,830.16x = 27,560,496,657.08
  5. Step 5: Solve for x
    x = 27,560,496,657.08/218,830.16
  6. Step 6: Final answer
    x = 125,944.69

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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.