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Finding the Fourth Proportional to 269,538.20, 403,967.10 and 136,455.20

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Solution

The fourth proportional to 269,538.20, 403,967.10 and 136,455.20 is: 204,510.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,538.20 : 403,967.10 = 136,455.20 : x
  2. Step 2: Convert to fraction form
    269,538.20/403,967.10 = 136,455.20/x
  3. Step 3: Cross multiply
    269,538.20x = 403,967.10 × 136,455.20
  4. Step 4: Simplify right side
    269,538.20x = 55,123,411,423.92
  5. Step 5: Solve for x
    x = 55,123,411,423.92/269,538.20
  6. Step 6: Final answer
    x = 204,510.57

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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.