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Finding the Fourth Proportional to 197,779.87, 296,637 and 71,395.87

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Solution

The fourth proportional to 197,779.87, 296,637 and 71,395.87 is: 107,081.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,779.87 : 296,637 = 71,395.87 : x
  2. Step 2: Convert to fraction form
    197,779.87/296,637 = 71,395.87/x
  3. Step 3: Cross multiply
    197,779.87x = 296,637 × 71,395.87
  4. Step 4: Simplify right side
    197,779.87x = 21,178,656,689.19
  5. Step 5: Solve for x
    x = 21,178,656,689.19/197,779.87
  6. Step 6: Final answer
    x = 107,081.96

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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.