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Finding the Fourth Proportional to 394,501.20, 591,751.80 and 226,539.60

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Solution

The fourth proportional to 394,501.20, 591,751.80 and 226,539.60 is: 339,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,501.20 : 591,751.80 = 226,539.60 : x
  2. Step 2: Convert to fraction form
    394,501.20/591,751.80 = 226,539.60/x
  3. Step 3: Cross multiply
    394,501.20x = 591,751.80 × 226,539.60
  4. Step 4: Simplify right side
    394,501.20x = 134,055,216,071.28
  5. Step 5: Solve for x
    x = 134,055,216,071.28/394,501.20
  6. Step 6: Final answer
    x = 339,809.40

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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.