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Finding the Fourth Proportional to 437,144.43, 655,686.54 and 268,690.77

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Solution

The fourth proportional to 437,144.43, 655,686.54 and 268,690.77 is: 403,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,144.43 : 655,686.54 = 268,690.77 : x
  2. Step 2: Convert to fraction form
    437,144.43/655,686.54 = 268,690.77/x
  3. Step 3: Cross multiply
    437,144.43x = 655,686.54 × 268,690.77
  4. Step 4: Simplify right side
    437,144.43x = 176,176,921,311.24
  5. Step 5: Solve for x
    x = 176,176,921,311.24/437,144.43
  6. Step 6: Final answer
    x = 403,017.65

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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.