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Finding the Fourth Proportional to 223,603.60, 308,556.12 and 123,008.08

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Solution

The fourth proportional to 223,603.60, 308,556.12 and 123,008.08 is: 169,741.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,603.60 : 308,556.12 = 123,008.08 : x
  2. Step 2: Convert to fraction form
    223,603.60/308,556.12 = 123,008.08/x
  3. Step 3: Cross multiply
    223,603.60x = 308,556.12 × 123,008.08
  4. Step 4: Simplify right side
    223,603.60x = 37,954,895,893.45
  5. Step 5: Solve for x
    x = 37,954,895,893.45/223,603.60
  6. Step 6: Final answer
    x = 169,741.88

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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.