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Finding the Fourth Proportional to 268,899.20, 403,737.60 and 202,803.20

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Solution

The fourth proportional to 268,899.20, 403,737.60 and 202,803.20 is: 304,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,899.20 : 403,737.60 = 202,803.20 : x
  2. Step 2: Convert to fraction form
    268,899.20/403,737.60 = 202,803.20/x
  3. Step 3: Cross multiply
    268,899.20x = 403,737.60 × 202,803.20
  4. Step 4: Simplify right side
    268,899.20x = 81,879,277,240.32
  5. Step 5: Solve for x
    x = 81,879,277,240.32/268,899.20
  6. Step 6: Final answer
    x = 304,498.03

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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.