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Finding the Fourth Proportional to 475,395.30, 655,882.11 and 281,763.81

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Solution

The fourth proportional to 475,395.30, 655,882.11 and 281,763.81 is: 388,737.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,395.30 : 655,882.11 = 281,763.81 : x
  2. Step 2: Convert to fraction form
    475,395.30/655,882.11 = 281,763.81/x
  3. Step 3: Cross multiply
    475,395.30x = 655,882.11 × 281,763.81
  4. Step 4: Simplify right side
    475,395.30x = 184,803,842,224.44
  5. Step 5: Solve for x
    x = 184,803,842,224.44/475,395.30
  6. Step 6: Final answer
    x = 388,737.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.