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Finding the Fourth Proportional to 218,358.22, 301,340.22 and 122,868.28

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Solution

The fourth proportional to 218,358.22, 301,340.22 and 122,868.28 is: 169,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,358.22 : 301,340.22 = 122,868.28 : x
  2. Step 2: Convert to fraction form
    218,358.22/301,340.22 = 122,868.28/x
  3. Step 3: Cross multiply
    218,358.22x = 301,340.22 × 122,868.28
  4. Step 4: Simplify right side
    218,358.22x = 37,025,154,526.22
  5. Step 5: Solve for x
    x = 37,025,154,526.22/218,358.22
  6. Step 6: Final answer
    x = 169,561.53

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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.