Home / 217,933.20-300,748.08-122,439.84

Finding the Fourth Proportional to 217,933.20, 300,748.08 and 122,439.84

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Solution

The fourth proportional to 217,933.20, 300,748.08 and 122,439.84 is: 168,967.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,933.20 : 300,748.08 = 122,439.84 : x
  2. Step 2: Convert to fraction form
    217,933.20/300,748.08 = 122,439.84/x
  3. Step 3: Cross multiply
    217,933.20x = 300,748.08 × 122,439.84
  4. Step 4: Simplify right side
    217,933.20x = 36,823,546,795.51
  5. Step 5: Solve for x
    x = 36,823,546,795.51/217,933.20
  6. Step 6: Final answer
    x = 168,967.13

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1.5x scale

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.