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Finding the Fourth Proportional to 370,722.60, 555,306.30 and 204,316.20

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Solution

The fourth proportional to 370,722.60, 555,306.30 and 204,316.20 is: 306,045.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,722.60 : 555,306.30 = 204,316.20 : x
  2. Step 2: Convert to fraction form
    370,722.60/555,306.30 = 204,316.20/x
  3. Step 3: Cross multiply
    370,722.60x = 555,306.30 × 204,316.20
  4. Step 4: Simplify right side
    370,722.60x = 113,458,073,052.06
  5. Step 5: Solve for x
    x = 113,458,073,052.06/370,722.60
  6. Step 6: Final answer
    x = 306,045.74

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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.