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Finding the Fourth Proportional to 351,873.69, 527,729.58 and 209,759.10

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Solution

The fourth proportional to 351,873.69, 527,729.58 and 209,759.10 is: 314,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,873.69 : 527,729.58 = 209,759.10 : x
  2. Step 2: Convert to fraction form
    351,873.69/527,729.58 = 209,759.10/x
  3. Step 3: Cross multiply
    351,873.69x = 527,729.58 × 209,759.10
  4. Step 4: Simplify right side
    351,873.69x = 110,696,081,744.18
  5. Step 5: Solve for x
    x = 110,696,081,744.18/351,873.69
  6. Step 6: Final answer
    x = 314,590.39

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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.