Home / 247,948.20-342,256.26-147,345

Finding the Fourth Proportional to 247,948.20, 342,256.26 and 147,345

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Solution

The fourth proportional to 247,948.20, 342,256.26 and 147,345 is: 203,388.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,948.20 : 342,256.26 = 147,345 : x
  2. Step 2: Convert to fraction form
    247,948.20/342,256.26 = 147,345/x
  3. Step 3: Cross multiply
    247,948.20x = 342,256.26 × 147,345
  4. Step 4: Simplify right side
    247,948.20x = 50,429,748,629.70
  5. Step 5: Solve for x
    x = 50,429,748,629.70/247,948.20
  6. Step 6: Final answer
    x = 203,388.24

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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.