Home / 334,338.28-501,505.63-81,620.10

Finding the Fourth Proportional to 334,338.28, 501,505.63 and 81,620.10

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Solution

The fourth proportional to 334,338.28, 501,505.63 and 81,620.10 is: 122,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,338.28 : 501,505.63 = 81,620.10 : x
  2. Step 2: Convert to fraction form
    334,338.28/501,505.63 = 81,620.10/x
  3. Step 3: Cross multiply
    334,338.28x = 501,505.63 × 81,620.10
  4. Step 4: Simplify right side
    334,338.28x = 40,932,939,467.11
  5. Step 5: Solve for x
    x = 40,932,939,467.11/334,338.28
  6. Step 6: Final answer
    x = 122,429.71

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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.