Home / 290,290.92-435,463.86-112,811.64

Finding the Fourth Proportional to 290,290.92, 435,463.86 and 112,811.64

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Solution

The fourth proportional to 290,290.92, 435,463.86 and 112,811.64 is: 169,228.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,290.92 : 435,463.86 = 112,811.64 : x
  2. Step 2: Convert to fraction form
    290,290.92/435,463.86 = 112,811.64/x
  3. Step 3: Cross multiply
    290,290.92x = 435,463.86 × 112,811.64
  4. Step 4: Simplify right side
    290,290.92x = 49,125,392,207.33
  5. Step 5: Solve for x
    x = 49,125,392,207.33/290,290.92
  6. Step 6: Final answer
    x = 169,228.14

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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.