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Finding the Fourth Proportional to 347,860, 521,782.56 and 95,140.48

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Solution

The fourth proportional to 347,860, 521,782.56 and 95,140.48 is: 142,708.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,860 : 521,782.56 = 95,140.48 : x
  2. Step 2: Convert to fraction form
    347,860/521,782.56 = 95,140.48/x
  3. Step 3: Cross multiply
    347,860x = 521,782.56 × 95,140.48
  4. Step 4: Simplify right side
    347,860x = 49,642,643,214.03
  5. Step 5: Solve for x
    x = 49,642,643,214.03/347,860
  6. Step 6: Final answer
    x = 142,708.69

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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.