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Finding the Fourth Proportional to 497,019.60, 745,626.60 and 197,449.20

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Solution

The fourth proportional to 497,019.60, 745,626.60 and 197,449.20 is: 296,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,019.60 : 745,626.60 = 197,449.20 : x
  2. Step 2: Convert to fraction form
    497,019.60/745,626.60 = 197,449.20/x
  3. Step 3: Cross multiply
    497,019.60x = 745,626.60 × 197,449.20
  4. Step 4: Simplify right side
    497,019.60x = 147,223,375,668.72
  5. Step 5: Solve for x
    x = 147,223,375,668.72/497,019.60
  6. Step 6: Final answer
    x = 296,212.41

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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.