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Finding the Fourth Proportional to 346,116, 519,230.16 and 135,639.84

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Solution

The fourth proportional to 346,116, 519,230.16 and 135,639.84 is: 203,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,116 : 519,230.16 = 135,639.84 : x
  2. Step 2: Convert to fraction form
    346,116/519,230.16 = 135,639.84/x
  3. Step 3: Cross multiply
    346,116x = 519,230.16 × 135,639.84
  4. Step 4: Simplify right side
    346,116x = 70,428,295,825.57
  5. Step 5: Solve for x
    x = 70,428,295,825.57/346,116
  6. Step 6: Final answer
    x = 203,481.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.