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Finding the Fourth Proportional to 318,556.52, 439,637.46 and 175,345.64

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Solution

The fourth proportional to 318,556.52, 439,637.46 and 175,345.64 is: 241,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,556.52 : 439,637.46 = 175,345.64 : x
  2. Step 2: Convert to fraction form
    318,556.52/439,637.46 = 175,345.64/x
  3. Step 3: Cross multiply
    318,556.52x = 439,637.46 × 175,345.64
  4. Step 4: Simplify right side
    318,556.52x = 77,088,511,791.67
  5. Step 5: Solve for x
    x = 77,088,511,791.67/318,556.52
  6. Step 6: Final answer
    x = 241,993.20

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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.