Home / 543,610.20-815,415.30-144,312.60

Finding the Fourth Proportional to 543,610.20, 815,415.30 and 144,312.60

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Solution

The fourth proportional to 543,610.20, 815,415.30 and 144,312.60 is: 216,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,610.20 : 815,415.30 = 144,312.60 : x
  2. Step 2: Convert to fraction form
    543,610.20/815,415.30 = 144,312.60/x
  3. Step 3: Cross multiply
    543,610.20x = 815,415.30 × 144,312.60
  4. Step 4: Simplify right side
    543,610.20x = 117,674,702,022.78
  5. Step 5: Solve for x
    x = 117,674,702,022.78/543,610.20
  6. Step 6: Final answer
    x = 216,468.90

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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.