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Finding the Fourth Proportional to 269,277.70, 403,916.55 and 128,964.10

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Solution

The fourth proportional to 269,277.70, 403,916.55 and 128,964.10 is: 193,446.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,277.70 : 403,916.55 = 128,964.10 : x
  2. Step 2: Convert to fraction form
    269,277.70/403,916.55 = 128,964.10/x
  3. Step 3: Cross multiply
    269,277.70x = 403,916.55 × 128,964.10
  4. Step 4: Simplify right side
    269,277.70x = 52,090,734,345.86
  5. Step 5: Solve for x
    x = 52,090,734,345.86/269,277.70
  6. Step 6: Final answer
    x = 193,446.15

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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.