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Finding the Fourth Proportional to 223,458.48, 335,009.88 and 81,281.52

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Solution

The fourth proportional to 223,458.48, 335,009.88 and 81,281.52 is: 121,857.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,458.48 : 335,009.88 = 81,281.52 : x
  2. Step 2: Convert to fraction form
    223,458.48/335,009.88 = 81,281.52/x
  3. Step 3: Cross multiply
    223,458.48x = 335,009.88 × 81,281.52
  4. Step 4: Simplify right side
    223,458.48x = 27,230,112,261.42
  5. Step 5: Solve for x
    x = 27,230,112,261.42/223,458.48
  6. Step 6: Final answer
    x = 121,857.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.