Home / 217,799.12-300,565.32-122,327.12

Finding the Fourth Proportional to 217,799.12, 300,565.32 and 122,327.12

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Solution

The fourth proportional to 217,799.12, 300,565.32 and 122,327.12 is: 168,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,799.12 : 300,565.32 = 122,327.12 : x
  2. Step 2: Convert to fraction form
    217,799.12/300,565.32 = 122,327.12/x
  3. Step 3: Cross multiply
    217,799.12x = 300,565.32 × 122,327.12
  4. Step 4: Simplify right side
    217,799.12x = 36,767,289,967.48
  5. Step 5: Solve for x
    x = 36,767,289,967.48/217,799.12
  6. Step 6: Final answer
    x = 168,812.85

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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.