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Finding the Fourth Proportional to 245,981.60, 368,864.40 and 112,817.60

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Solution

The fourth proportional to 245,981.60, 368,864.40 and 112,817.60 is: 169,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,981.60 : 368,864.40 = 112,817.60 : x
  2. Step 2: Convert to fraction form
    245,981.60/368,864.40 = 112,817.60/x
  3. Step 3: Cross multiply
    245,981.60x = 368,864.40 × 112,817.60
  4. Step 4: Simplify right side
    245,981.60x = 41,614,396,333.44
  5. Step 5: Solve for x
    x = 41,614,396,333.44/245,981.60
  6. Step 6: Final answer
    x = 169,176.87

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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.