Home / 219,101.25-328,618.92-69,322.05

Finding the Fourth Proportional to 219,101.25, 328,618.92 and 69,322.05

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Solution

The fourth proportional to 219,101.25, 328,618.92 and 69,322.05 is: 103,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,101.25 : 328,618.92 = 69,322.05 : x
  2. Step 2: Convert to fraction form
    219,101.25/328,618.92 = 69,322.05/x
  3. Step 3: Cross multiply
    219,101.25x = 328,618.92 × 69,322.05
  4. Step 4: Simplify right side
    219,101.25x = 22,780,537,001.02
  5. Step 5: Solve for x
    x = 22,780,537,001.02/219,101.25
  6. Step 6: Final answer
    x = 103,972.65

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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.