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Finding the Fourth Proportional to 475,174.05, 655,734.93 and 257,377.32

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Solution

The fourth proportional to 475,174.05, 655,734.93 and 257,377.32 is: 355,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,174.05 : 655,734.93 = 257,377.32 : x
  2. Step 2: Convert to fraction form
    475,174.05/655,734.93 = 257,377.32/x
  3. Step 3: Cross multiply
    475,174.05x = 655,734.93 × 257,377.32
  4. Step 4: Simplify right side
    475,174.05x = 168,771,300,878.69
  5. Step 5: Solve for x
    x = 168,771,300,878.69/475,174.05
  6. Step 6: Final answer
    x = 355,177.86

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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.