Home / 543,940.40-815,909.70-144,581.17

Finding the Fourth Proportional to 543,940.40, 815,909.70 and 144,581.17

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Solution

The fourth proportional to 543,940.40, 815,909.70 and 144,581.17 is: 216,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,940.40 : 815,909.70 = 144,581.17 : x
  2. Step 2: Convert to fraction form
    543,940.40/815,909.70 = 144,581.17/x
  3. Step 3: Cross multiply
    543,940.40x = 815,909.70 × 144,581.17
  4. Step 4: Simplify right side
    543,940.40x = 117,965,179,040.35
  5. Step 5: Solve for x
    x = 117,965,179,040.35/543,940.40
  6. Step 6: Final answer
    x = 216,871.52

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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.