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Finding the Fourth Proportional to 202,319.80, 303,479.70 and 127,524.40

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Solution

The fourth proportional to 202,319.80, 303,479.70 and 127,524.40 is: 191,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,319.80 : 303,479.70 = 127,524.40 : x
  2. Step 2: Convert to fraction form
    202,319.80/303,479.70 = 127,524.40/x
  3. Step 3: Cross multiply
    202,319.80x = 303,479.70 × 127,524.40
  4. Step 4: Simplify right side
    202,319.80x = 38,701,066,654.68
  5. Step 5: Solve for x
    x = 38,701,066,654.68/202,319.80
  6. Step 6: Final answer
    x = 191,286.60

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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.