Home / 543,628.43-815,379.28-144,300.23

Finding the Fourth Proportional to 543,628.43, 815,379.28 and 144,300.23

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Solution

The fourth proportional to 543,628.43, 815,379.28 and 144,300.23 is: 216,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,628.43 : 815,379.28 = 144,300.23 : x
  2. Step 2: Convert to fraction form
    543,628.43/815,379.28 = 144,300.23/x
  3. Step 3: Cross multiply
    543,628.43x = 815,379.28 × 144,300.23
  4. Step 4: Simplify right side
    543,628.43x = 117,659,417,641.23
  5. Step 5: Solve for x
    x = 117,659,417,641.23/543,628.43
  6. Step 6: Final answer
    x = 216,433.53

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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.