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Finding the Fourth Proportional to 274,568.16, 378,708.66 and 251,980.08

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Solution

The fourth proportional to 274,568.16, 378,708.66 and 251,980.08 is: 347,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,568.16 : 378,708.66 = 251,980.08 : x
  2. Step 2: Convert to fraction form
    274,568.16/378,708.66 = 251,980.08/x
  3. Step 3: Cross multiply
    274,568.16x = 378,708.66 × 251,980.08
  4. Step 4: Simplify right side
    274,568.16x = 95,427,038,443.49
  5. Step 5: Solve for x
    x = 95,427,038,443.49/274,568.16
  6. Step 6: Final answer
    x = 347,553.18

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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.