Home / 218,380.32-301,365.36-122,888.16

Finding the Fourth Proportional to 218,380.32, 301,365.36 and 122,888.16

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Solution

The fourth proportional to 218,380.32, 301,365.36 and 122,888.16 is: 169,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,380.32 : 301,365.36 = 122,888.16 : x
  2. Step 2: Convert to fraction form
    218,380.32/301,365.36 = 122,888.16/x
  3. Step 3: Cross multiply
    218,380.32x = 301,365.36 × 122,888.16
  4. Step 4: Simplify right side
    218,380.32x = 37,034,234,578.14
  5. Step 5: Solve for x
    x = 37,034,234,578.14/218,380.32
  6. Step 6: Final answer
    x = 169,585.95

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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.