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Finding the Fourth Proportional to 222,555.76, 306,959.52 and 154,572.82

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Solution

The fourth proportional to 222,555.76, 306,959.52 and 154,572.82 is: 213,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,555.76 : 306,959.52 = 154,572.82 : x
  2. Step 2: Convert to fraction form
    222,555.76/306,959.52 = 154,572.82/x
  3. Step 3: Cross multiply
    222,555.76x = 306,959.52 × 154,572.82
  4. Step 4: Simplify right side
    222,555.76x = 47,447,598,632.25
  5. Step 5: Solve for x
    x = 47,447,598,632.25/222,555.76
  6. Step 6: Final answer
    x = 213,194.21

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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.