Home / 403,743.18-557,162.85-222,450.91

Finding the Fourth Proportional to 403,743.18, 557,162.85 and 222,450.91

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Solution

The fourth proportional to 403,743.18, 557,162.85 and 222,450.91 is: 306,980.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,743.18 : 557,162.85 = 222,450.91 : x
  2. Step 2: Convert to fraction form
    403,743.18/557,162.85 = 222,450.91/x
  3. Step 3: Cross multiply
    403,743.18x = 557,162.85 × 222,450.91
  4. Step 4: Simplify right side
    403,743.18x = 123,941,382,441.98
  5. Step 5: Solve for x
    x = 123,941,382,441.98/403,743.18
  6. Step 6: Final answer
    x = 306,980.74

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1.5x scale

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.