Home / 403,122.60-556,297.41-221,834.46

Finding the Fourth Proportional to 403,122.60, 556,297.41 and 221,834.46

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Solution

The fourth proportional to 403,122.60, 556,297.41 and 221,834.46 is: 306,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,122.60 : 556,297.41 = 221,834.46 : x
  2. Step 2: Convert to fraction form
    403,122.60/556,297.41 = 221,834.46/x
  3. Step 3: Cross multiply
    403,122.60x = 556,297.41 × 221,834.46
  4. Step 4: Simplify right side
    403,122.60x = 123,405,935,546.75
  5. Step 5: Solve for x
    x = 123,405,935,546.75/403,122.60
  6. Step 6: Final answer
    x = 306,125.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.