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Finding the Fourth Proportional to 263,577.78, 363,737.49 and 142,719.12

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Solution

The fourth proportional to 263,577.78, 363,737.49 and 142,719.12 is: 196,952.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,577.78 : 363,737.49 = 142,719.12 : x
  2. Step 2: Convert to fraction form
    263,577.78/363,737.49 = 142,719.12/x
  3. Step 3: Cross multiply
    263,577.78x = 363,737.49 × 142,719.12
  4. Step 4: Simplify right side
    263,577.78x = 51,912,294,483.81
  5. Step 5: Solve for x
    x = 51,912,294,483.81/263,577.78
  6. Step 6: Final answer
    x = 196,952.47

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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.