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Finding the Fourth Proportional to 247,084.68, 340,977.12 and 133,907.40

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Solution

The fourth proportional to 247,084.68, 340,977.12 and 133,907.40 is: 184,792.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,084.68 : 340,977.12 = 133,907.40 : x
  2. Step 2: Convert to fraction form
    247,084.68/340,977.12 = 133,907.40/x
  3. Step 3: Cross multiply
    247,084.68x = 340,977.12 × 133,907.40
  4. Step 4: Simplify right side
    247,084.68x = 45,659,359,598.69
  5. Step 5: Solve for x
    x = 45,659,359,598.69/247,084.68
  6. Step 6: Final answer
    x = 184,792.35

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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.