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Finding the Fourth Proportional to 539,147.20, 808,720.80 and 223,571.20

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Solution

The fourth proportional to 539,147.20, 808,720.80 and 223,571.20 is: 335,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,147.20 : 808,720.80 = 223,571.20 : x
  2. Step 2: Convert to fraction form
    539,147.20/808,720.80 = 223,571.20/x
  3. Step 3: Cross multiply
    539,147.20x = 808,720.80 × 223,571.20
  4. Step 4: Simplify right side
    539,147.20x = 180,806,679,720.96
  5. Step 5: Solve for x
    x = 180,806,679,720.96/539,147.20
  6. Step 6: Final answer
    x = 335,356.80

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Similar ratio
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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.