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Finding the Fourth Proportional to 539,387.11, 808,870.32 and 202,244.05

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Solution

The fourth proportional to 539,387.11, 808,870.32 and 202,244.05 is: 303,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,387.11 : 808,870.32 = 202,244.05 : x
  2. Step 2: Convert to fraction form
    539,387.11/808,870.32 = 202,244.05/x
  3. Step 3: Cross multiply
    539,387.11x = 808,870.32 × 202,244.05
  4. Step 4: Simplify right side
    539,387.11x = 163,589,212,348.52
  5. Step 5: Solve for x
    x = 163,589,212,348.52/539,387.11
  6. Step 6: Final answer
    x = 303,287.21

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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.