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Finding the Fourth Proportional to 247,699.77, 341,886.87 and 140,333.06

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Solution

The fourth proportional to 247,699.77, 341,886.87 and 140,333.06 is: 193,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,699.77 : 341,886.87 = 140,333.06 : x
  2. Step 2: Convert to fraction form
    247,699.77/341,886.87 = 140,333.06/x
  3. Step 3: Cross multiply
    247,699.77x = 341,886.87 × 140,333.06
  4. Step 4: Simplify right side
    247,699.77x = 47,978,028,931.49
  5. Step 5: Solve for x
    x = 47,978,028,931.49/247,699.77
  6. Step 6: Final answer
    x = 193,694.28

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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.