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Finding the Fourth Proportional to 268,968, 403,701.30 and 135,941.88

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Solution

The fourth proportional to 268,968, 403,701.30 and 135,941.88 is: 204,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,968 : 403,701.30 = 135,941.88 : x
  2. Step 2: Convert to fraction form
    268,968/403,701.30 = 135,941.88/x
  3. Step 3: Cross multiply
    268,968x = 403,701.30 × 135,941.88
  4. Step 4: Simplify right side
    268,968x = 54,879,913,680.44
  5. Step 5: Solve for x
    x = 54,879,913,680.44/268,968
  6. Step 6: Final answer
    x = 204,038.82

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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.