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Finding the Fourth Proportional to 220,145.70, 330,218.55 and 182,780.40

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Solution

The fourth proportional to 220,145.70, 330,218.55 and 182,780.40 is: 274,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,145.70 : 330,218.55 = 182,780.40 : x
  2. Step 2: Convert to fraction form
    220,145.70/330,218.55 = 182,780.40/x
  3. Step 3: Cross multiply
    220,145.70x = 330,218.55 × 182,780.40
  4. Step 4: Simplify right side
    220,145.70x = 60,357,478,656.42
  5. Step 5: Solve for x
    x = 60,357,478,656.42/220,145.70
  6. Step 6: Final answer
    x = 274,170.60

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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.