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Finding the Fourth Proportional to 240,151.80, 359,709.30 and 198,679.80

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Solution

The fourth proportional to 240,151.80, 359,709.30 and 198,679.80 is: 297,590.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,151.80 : 359,709.30 = 198,679.80 : x
  2. Step 2: Convert to fraction form
    240,151.80/359,709.30 = 198,679.80/x
  3. Step 3: Cross multiply
    240,151.80x = 359,709.30 × 198,679.80
  4. Step 4: Simplify right side
    240,151.80x = 71,466,971,782.14
  5. Step 5: Solve for x
    x = 71,466,971,782.14/240,151.80
  6. Step 6: Final answer
    x = 297,590.82

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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.