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Finding the Fourth Proportional to 222,561.82, 307,157.29 and 127,082.87

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Solution

The fourth proportional to 222,561.82, 307,157.29 and 127,082.87 is: 175,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,561.82 : 307,157.29 = 127,082.87 : x
  2. Step 2: Convert to fraction form
    222,561.82/307,157.29 = 127,082.87/x
  3. Step 3: Cross multiply
    222,561.82x = 307,157.29 × 127,082.87
  4. Step 4: Simplify right side
    222,561.82x = 39,034,428,101.13
  5. Step 5: Solve for x
    x = 39,034,428,101.13/222,561.82
  6. Step 6: Final answer
    x = 175,386.90

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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.