Home / 543,424.20-815,172.30-144,059.40

Finding the Fourth Proportional to 543,424.20, 815,172.30 and 144,059.40

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Solution

The fourth proportional to 543,424.20, 815,172.30 and 144,059.40 is: 216,098.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,424.20 : 815,172.30 = 144,059.40 : x
  2. Step 2: Convert to fraction form
    543,424.20/815,172.30 = 144,059.40/x
  3. Step 3: Cross multiply
    543,424.20x = 815,172.30 × 144,059.40
  4. Step 4: Simplify right side
    543,424.20x = 117,433,232,434.62
  5. Step 5: Solve for x
    x = 117,433,232,434.62/543,424.20
  6. Step 6: Final answer
    x = 216,098.64

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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.