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Finding the Fourth Proportional to 239,047.34, 358,348.26 and 81,167.81

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Solution

The fourth proportional to 239,047.34, 358,348.26 and 81,167.81 is: 121,676.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,047.34 : 358,348.26 = 81,167.81 : x
  2. Step 2: Convert to fraction form
    239,047.34/358,348.26 = 81,167.81/x
  3. Step 3: Cross multiply
    239,047.34x = 358,348.26 × 81,167.81
  4. Step 4: Simplify right side
    239,047.34x = 29,086,343,481.51
  5. Step 5: Solve for x
    x = 29,086,343,481.51/239,047.34
  6. Step 6: Final answer
    x = 121,676.08

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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.