Home / 219,107.28-328,796.98-140,278.08

Finding the Fourth Proportional to 219,107.28, 328,796.98 and 140,278.08

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Solution

The fourth proportional to 219,107.28, 328,796.98 and 140,278.08 is: 210,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,107.28 : 328,796.98 = 140,278.08 : x
  2. Step 2: Convert to fraction form
    219,107.28/328,796.98 = 140,278.08/x
  3. Step 3: Cross multiply
    219,107.28x = 328,796.98 × 140,278.08
  4. Step 4: Simplify right side
    219,107.28x = 46,123,009,064.20
  5. Step 5: Solve for x
    x = 46,123,009,064.20/219,107.28
  6. Step 6: Final answer
    x = 210,504.23

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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.