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Finding the Fourth Proportional to 315,066.52, 434,817.68 and 179,143.12

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Solution

The fourth proportional to 315,066.52, 434,817.68 and 179,143.12 is: 247,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,066.52 : 434,817.68 = 179,143.12 : x
  2. Step 2: Convert to fraction form
    315,066.52/434,817.68 = 179,143.12/x
  3. Step 3: Cross multiply
    315,066.52x = 434,817.68 × 179,143.12
  4. Step 4: Simplify right side
    315,066.52x = 77,894,595,826.36
  5. Step 5: Solve for x
    x = 77,894,595,826.36/315,066.52
  6. Step 6: Final answer
    x = 247,232.22

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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.