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Finding the Fourth Proportional to 318,101.43, 438,968.84 and 174,860.45

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Solution

The fourth proportional to 318,101.43, 438,968.84 and 174,860.45 is: 241,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,101.43 : 438,968.84 = 174,860.45 : x
  2. Step 2: Convert to fraction form
    318,101.43/438,968.84 = 174,860.45/x
  3. Step 3: Cross multiply
    318,101.43x = 438,968.84 × 174,860.45
  4. Step 4: Simplify right side
    318,101.43x = 76,758,286,926.65
  5. Step 5: Solve for x
    x = 76,758,286,926.65/318,101.43
  6. Step 6: Final answer
    x = 241,301.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.