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Finding the Fourth Proportional to 486,216.78, 729,439.72 and 166,372.13

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Solution

The fourth proportional to 486,216.78, 729,439.72 and 166,372.13 is: 249,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,216.78 : 729,439.72 = 166,372.13 : x
  2. Step 2: Convert to fraction form
    486,216.78/729,439.72 = 166,372.13/x
  3. Step 3: Cross multiply
    486,216.78x = 729,439.72 × 166,372.13
  4. Step 4: Simplify right side
    486,216.78x = 121,358,438,163.42
  5. Step 5: Solve for x
    x = 121,358,438,163.42/486,216.78
  6. Step 6: Final answer
    x = 249,597.39

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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.