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Finding the Fourth Proportional to 222,555.88, 306,959.58 and 154,572.94

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Solution

The fourth proportional to 222,555.88, 306,959.58 and 154,572.94 is: 213,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,555.88 : 306,959.58 = 154,572.94 : x
  2. Step 2: Convert to fraction form
    222,555.88/306,959.58 = 154,572.94/x
  3. Step 3: Cross multiply
    222,555.88x = 306,959.58 × 154,572.94
  4. Step 4: Simplify right side
    222,555.88x = 47,447,644,741.77
  5. Step 5: Solve for x
    x = 47,447,644,741.77/222,555.88
  6. Step 6: Final answer
    x = 213,194.30

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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.