Home / 403,423.40-556,736.55-222,141.83

Finding the Fourth Proportional to 403,423.40, 556,736.55 and 222,141.83

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Solution

The fourth proportional to 403,423.40, 556,736.55 and 222,141.83 is: 306,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,423.40 : 556,736.55 = 222,141.83 : x
  2. Step 2: Convert to fraction form
    403,423.40/556,736.55 = 222,141.83/x
  3. Step 3: Cross multiply
    403,423.40x = 556,736.55 × 222,141.83
  4. Step 4: Simplify right side
    403,423.40x = 123,674,473,261.20
  5. Step 5: Solve for x
    x = 123,674,473,261.20/403,423.40
  6. Step 6: Final answer
    x = 306,562.47

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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.