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Finding the Fourth Proportional to 222,721.70, 334,082.55 and 209,599.70

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Solution

The fourth proportional to 222,721.70, 334,082.55 and 209,599.70 is: 314,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,721.70 : 334,082.55 = 209,599.70 : x
  2. Step 2: Convert to fraction form
    222,721.70/334,082.55 = 209,599.70/x
  3. Step 3: Cross multiply
    222,721.70x = 334,082.55 × 209,599.70
  4. Step 4: Simplify right side
    222,721.70x = 70,023,602,255.24
  5. Step 5: Solve for x
    x = 70,023,602,255.24/222,721.70
  6. Step 6: Final answer
    x = 314,399.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.