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Finding the Fourth Proportional to 539,239.80, 808,568.10 and 223,728.60

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Solution

The fourth proportional to 539,239.80, 808,568.10 and 223,728.60 is: 335,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,239.80 : 808,568.10 = 223,728.60 : x
  2. Step 2: Convert to fraction form
    539,239.80/808,568.10 = 223,728.60/x
  3. Step 3: Cross multiply
    539,239.80x = 808,568.10 × 223,728.60
  4. Step 4: Simplify right side
    539,239.80x = 180,899,809,017.66
  5. Step 5: Solve for x
    x = 180,899,809,017.66/539,239.80
  6. Step 6: Final answer
    x = 335,471.92

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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.