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Finding the Fourth Proportional to 218,317.28, 301,274.29 and 122,823.29

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Solution

The fourth proportional to 218,317.28, 301,274.29 and 122,823.29 is: 169,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,317.28 : 301,274.29 = 122,823.29 : x
  2. Step 2: Convert to fraction form
    218,317.28/301,274.29 = 122,823.29/x
  3. Step 3: Cross multiply
    218,317.28x = 301,274.29 × 122,823.29
  4. Step 4: Simplify right side
    218,317.28x = 37,003,498,011.38
  5. Step 5: Solve for x
    x = 37,003,498,011.38/218,317.28
  6. Step 6: Final answer
    x = 169,494.14

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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.