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Finding the Fourth Proportional to 606,400.20, 908,871.30 and 251,231.40

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Solution

The fourth proportional to 606,400.20, 908,871.30 and 251,231.40 is: 376,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,400.20 : 908,871.30 = 251,231.40 : x
  2. Step 2: Convert to fraction form
    606,400.20/908,871.30 = 251,231.40/x
  3. Step 3: Cross multiply
    606,400.20x = 908,871.30 × 251,231.40
  4. Step 4: Simplify right side
    606,400.20x = 228,337,009,118.82
  5. Step 5: Solve for x
    x = 228,337,009,118.82/606,400.20
  6. Step 6: Final answer
    x = 376,545.08

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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.