Home / 219,877.40-329,816.10-136,933.40

Finding the Fourth Proportional to 219,877.40, 329,816.10 and 136,933.40

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Solution

The fourth proportional to 219,877.40, 329,816.10 and 136,933.40 is: 205,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,877.40 : 329,816.10 = 136,933.40 : x
  2. Step 2: Convert to fraction form
    219,877.40/329,816.10 = 136,933.40/x
  3. Step 3: Cross multiply
    219,877.40x = 329,816.10 × 136,933.40
  4. Step 4: Simplify right side
    219,877.40x = 45,162,839,947.74
  5. Step 5: Solve for x
    x = 45,162,839,947.74/219,877.40
  6. Step 6: Final answer
    x = 205,400.10

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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.