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Finding the Fourth Proportional to 510,267.39, 765,574.05 and 225,918.72

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Solution

The fourth proportional to 510,267.39, 765,574.05 and 225,918.72 is: 338,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,267.39 : 765,574.05 = 225,918.72 : x
  2. Step 2: Convert to fraction form
    510,267.39/765,574.05 = 225,918.72/x
  3. Step 3: Cross multiply
    510,267.39x = 765,574.05 × 225,918.72
  4. Step 4: Simplify right side
    510,267.39x = 172,957,509,441.22
  5. Step 5: Solve for x
    x = 172,957,509,441.22/510,267.39
  6. Step 6: Final answer
    x = 338,954.66

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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.