Home / 347,929.60-522,067.20-137,574.40

Finding the Fourth Proportional to 347,929.60, 522,067.20 and 137,574.40

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Solution

The fourth proportional to 347,929.60, 522,067.20 and 137,574.40 is: 206,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,929.60 : 522,067.20 = 137,574.40 : x
  2. Step 2: Convert to fraction form
    347,929.60/522,067.20 = 137,574.40/x
  3. Step 3: Cross multiply
    347,929.60x = 522,067.20 × 137,574.40
  4. Step 4: Simplify right side
    347,929.60x = 71,823,081,799.68
  5. Step 5: Solve for x
    x = 71,823,081,799.68/347,929.60
  6. Step 6: Final answer
    x = 206,429.93

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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.