Home / 218,230.05-301,122.77-122,718.30

Finding the Fourth Proportional to 218,230.05, 301,122.77 and 122,718.30

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Solution

The fourth proportional to 218,230.05, 301,122.77 and 122,718.30 is: 169,331.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,230.05 : 301,122.77 = 122,718.30 : x
  2. Step 2: Convert to fraction form
    218,230.05/301,122.77 = 122,718.30/x
  3. Step 3: Cross multiply
    218,230.05x = 301,122.77 × 122,718.30
  4. Step 4: Simplify right side
    218,230.05x = 36,953,274,425.69
  5. Step 5: Solve for x
    x = 36,953,274,425.69/218,230.05
  6. Step 6: Final answer
    x = 169,331.74

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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.