Home / 429,974.10-644,795.19-141,716.52

Finding the Fourth Proportional to 429,974.10, 644,795.19 and 141,716.52

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Solution

The fourth proportional to 429,974.10, 644,795.19 and 141,716.52 is: 212,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,974.10 : 644,795.19 = 141,716.52 : x
  2. Step 2: Convert to fraction form
    429,974.10/644,795.19 = 141,716.52/x
  3. Step 3: Cross multiply
    429,974.10x = 644,795.19 × 141,716.52
  4. Step 4: Simplify right side
    429,974.10x = 91,378,130,439.54
  5. Step 5: Solve for x
    x = 91,378,130,439.54/429,974.10
  6. Step 6: Final answer
    x = 212,520.08

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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.