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Finding the Fourth Proportional to 342,749.38, 514,229.18 and 153,369.18

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Solution

The fourth proportional to 342,749.38, 514,229.18 and 153,369.18 is: 230,100.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,749.38 : 514,229.18 = 153,369.18 : x
  2. Step 2: Convert to fraction form
    342,749.38/514,229.18 = 153,369.18/x
  3. Step 3: Cross multiply
    342,749.38x = 514,229.18 × 153,369.18
  4. Step 4: Simplify right side
    342,749.38x = 78,866,907,668.67
  5. Step 5: Solve for x
    x = 78,866,907,668.67/342,749.38
  6. Step 6: Final answer
    x = 230,100.80

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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.