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Finding the Fourth Proportional to 303,416.30, 455,306.70 and 125,904.80

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Solution

The fourth proportional to 303,416.30, 455,306.70 and 125,904.80 is: 188,932.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,416.30 : 455,306.70 = 125,904.80 : x
  2. Step 2: Convert to fraction form
    303,416.30/455,306.70 = 125,904.80/x
  3. Step 3: Cross multiply
    303,416.30x = 455,306.70 × 125,904.80
  4. Step 4: Simplify right side
    303,416.30x = 57,325,299,002.16
  5. Step 5: Solve for x
    x = 57,325,299,002.16/303,416.30
  6. Step 6: Final answer
    x = 188,932.83

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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.