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Finding the Fourth Proportional to 262,372.95, 393,520.19 and 72,813.33

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Solution

The fourth proportional to 262,372.95, 393,520.19 and 72,813.33 is: 109,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,372.95 : 393,520.19 = 72,813.33 : x
  2. Step 2: Convert to fraction form
    262,372.95/393,520.19 = 72,813.33/x
  3. Step 3: Cross multiply
    262,372.95x = 393,520.19 × 72,813.33
  4. Step 4: Simplify right side
    262,372.95x = 28,653,515,092.07
  5. Step 5: Solve for x
    x = 28,653,515,092.07/262,372.95
  6. Step 6: Final answer
    x = 109,209.11

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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.