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Finding the Fourth Proportional to 354,585.50, 489,327.99 and 227,261.10

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Solution

The fourth proportional to 354,585.50, 489,327.99 and 227,261.10 is: 313,620.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,585.50 : 489,327.99 = 227,261.10 : x
  2. Step 2: Convert to fraction form
    354,585.50/489,327.99 = 227,261.10/x
  3. Step 3: Cross multiply
    354,585.50x = 489,327.99 × 227,261.10
  4. Step 4: Simplify right side
    354,585.50x = 111,205,214,821.55
  5. Step 5: Solve for x
    x = 111,205,214,821.55/354,585.50
  6. Step 6: Final answer
    x = 313,620.31

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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.