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Finding the Fourth Proportional to 218,293.71, 301,244.88 and 122,800.49

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Solution

The fourth proportional to 218,293.71, 301,244.88 and 122,800.49 is: 169,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,293.71 : 301,244.88 = 122,800.49 : x
  2. Step 2: Convert to fraction form
    218,293.71/301,244.88 = 122,800.49/x
  3. Step 3: Cross multiply
    218,293.71x = 301,244.88 × 122,800.49
  4. Step 4: Simplify right side
    218,293.71x = 36,993,017,367.77
  5. Step 5: Solve for x
    x = 36,993,017,367.77/218,293.71
  6. Step 6: Final answer
    x = 169,464.42

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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.