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Finding the Fourth Proportional to 218,281.44, 301,226.22 and 121,483.68

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Solution

The fourth proportional to 218,281.44, 301,226.22 and 121,483.68 is: 167,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,281.44 : 301,226.22 = 121,483.68 : x
  2. Step 2: Convert to fraction form
    218,281.44/301,226.22 = 121,483.68/x
  3. Step 3: Cross multiply
    218,281.44x = 301,226.22 × 121,483.68
  4. Step 4: Simplify right side
    218,281.44x = 36,594,069,718.09
  5. Step 5: Solve for x
    x = 36,594,069,718.09/218,281.44
  6. Step 6: Final answer
    x = 167,646.27

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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.