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Finding the Fourth Proportional to 290,338.92, 435,535.92 and 112,859.64

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Solution

The fourth proportional to 290,338.92, 435,535.92 and 112,859.64 is: 169,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,338.92 : 435,535.92 = 112,859.64 : x
  2. Step 2: Convert to fraction form
    290,338.92/435,535.92 = 112,859.64/x
  3. Step 3: Cross multiply
    290,338.92x = 435,535.92 × 112,859.64
  4. Step 4: Simplify right side
    290,338.92x = 49,154,427,138.27
  5. Step 5: Solve for x
    x = 49,154,427,138.27/290,338.92
  6. Step 6: Final answer
    x = 169,300.17

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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.