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Finding the Fourth Proportional to 349,839.60, 525,342.60 and 192,181.20

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Solution

The fourth proportional to 349,839.60, 525,342.60 and 192,181.20 is: 288,592.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,839.60 : 525,342.60 = 192,181.20 : x
  2. Step 2: Convert to fraction form
    349,839.60/525,342.60 = 192,181.20/x
  3. Step 3: Cross multiply
    349,839.60x = 525,342.60 × 192,181.20
  4. Step 4: Simplify right side
    349,839.60x = 100,960,971,279.12
  5. Step 5: Solve for x
    x = 100,960,971,279.12/349,839.60
  6. Step 6: Final answer
    x = 288,592.18

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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.