Home / 308,733.18-425,643.39-222,620.10

Finding the Fourth Proportional to 308,733.18, 425,643.39 and 222,620.10

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Solution

The fourth proportional to 308,733.18, 425,643.39 and 222,620.10 is: 306,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,733.18 : 425,643.39 = 222,620.10 : x
  2. Step 2: Convert to fraction form
    308,733.18/425,643.39 = 222,620.10/x
  3. Step 3: Cross multiply
    308,733.18x = 425,643.39 × 222,620.10
  4. Step 4: Simplify right side
    308,733.18x = 94,756,774,046.14
  5. Step 5: Solve for x
    x = 94,756,774,046.14/308,733.18
  6. Step 6: Final answer
    x = 306,921.25

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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.