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Finding the Fourth Proportional to 363,290.40, 501,352.38 and 227,280.78

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Solution

The fourth proportional to 363,290.40, 501,352.38 and 227,280.78 is: 313,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,290.40 : 501,352.38 = 227,280.78 : x
  2. Step 2: Convert to fraction form
    363,290.40/501,352.38 = 227,280.78/x
  3. Step 3: Cross multiply
    363,290.40x = 501,352.38 × 227,280.78
  4. Step 4: Simplify right side
    363,290.40x = 113,947,759,981.26
  5. Step 5: Solve for x
    x = 113,947,759,981.26/363,290.40
  6. Step 6: Final answer
    x = 313,654.75

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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.