Home / 247,837.64-342,015.09-140,428.17

Finding the Fourth Proportional to 247,837.64, 342,015.09 and 140,428.17

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Solution

The fourth proportional to 247,837.64, 342,015.09 and 140,428.17 is: 193,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,837.64 : 342,015.09 = 140,428.17 : x
  2. Step 2: Convert to fraction form
    247,837.64/342,015.09 = 140,428.17/x
  3. Step 3: Cross multiply
    247,837.64x = 342,015.09 × 140,428.17
  4. Step 4: Simplify right side
    247,837.64x = 48,028,553,201.09
  5. Step 5: Solve for x
    x = 48,028,553,201.09/247,837.64
  6. Step 6: Final answer
    x = 193,790.40

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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.