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Finding the Fourth Proportional to 312,285.97, 468,282.61 and 112,579.93

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Solution

The fourth proportional to 312,285.97, 468,282.61 and 112,579.93 is: 168,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,285.97 : 468,282.61 = 112,579.93 : x
  2. Step 2: Convert to fraction form
    312,285.97/468,282.61 = 112,579.93/x
  3. Step 3: Cross multiply
    312,285.97x = 468,282.61 × 112,579.93
  4. Step 4: Simplify right side
    312,285.97x = 52,719,223,454.02
  5. Step 5: Solve for x
    x = 52,719,223,454.02/312,285.97
  6. Step 6: Final answer
    x = 168,817.14

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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.