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Finding the Fourth Proportional to 475,249.42, 655,742.10 and 281,718.10

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Solution

The fourth proportional to 475,249.42, 655,742.10 and 281,718.10 is: 388,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,249.42 : 655,742.10 = 281,718.10 : x
  2. Step 2: Convert to fraction form
    475,249.42/655,742.10 = 281,718.10/x
  3. Step 3: Cross multiply
    475,249.42x = 655,742.10 × 281,718.10
  4. Step 4: Simplify right side
    475,249.42x = 184,734,418,502.01
  5. Step 5: Solve for x
    x = 184,734,418,502.01/475,249.42
  6. Step 6: Final answer
    x = 388,710.46

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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.