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Finding the Fourth Proportional to 222,559.76, 307,145.84 and 136,528.44

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Solution

The fourth proportional to 222,559.76, 307,145.84 and 136,528.44 is: 188,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,559.76 : 307,145.84 = 136,528.44 : x
  2. Step 2: Convert to fraction form
    222,559.76/307,145.84 = 136,528.44/x
  3. Step 3: Cross multiply
    222,559.76x = 307,145.84 × 136,528.44
  4. Step 4: Simplify right side
    222,559.76x = 41,934,141,705.05
  5. Step 5: Solve for x
    x = 41,934,141,705.05/222,559.76
  6. Step 6: Final answer
    x = 188,417.45

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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.