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Finding the Fourth Proportional to 247,911.44, 342,120.14 and 147,290

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Solution

The fourth proportional to 247,911.44, 342,120.14 and 147,290 is: 203,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,911.44 : 342,120.14 = 147,290 : x
  2. Step 2: Convert to fraction form
    247,911.44/342,120.14 = 147,290/x
  3. Step 3: Cross multiply
    247,911.44x = 342,120.14 × 147,290
  4. Step 4: Simplify right side
    247,911.44x = 50,390,875,420.60
  5. Step 5: Solve for x
    x = 50,390,875,420.60/247,911.44
  6. Step 6: Final answer
    x = 203,261.60

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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.