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Finding the Fourth Proportional to 223,177.44, 308,130.48 and 138,419.04

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Solution

The fourth proportional to 223,177.44, 308,130.48 and 138,419.04 is: 191,108.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,177.44 : 308,130.48 = 138,419.04 : x
  2. Step 2: Convert to fraction form
    223,177.44/308,130.48 = 138,419.04/x
  3. Step 3: Cross multiply
    223,177.44x = 308,130.48 × 138,419.04
  4. Step 4: Simplify right side
    223,177.44x = 42,651,125,236.34
  5. Step 5: Solve for x
    x = 42,651,125,236.34/223,177.44
  6. Step 6: Final answer
    x = 191,108.59

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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.