Home / 287,914.14-431,949.67-88,230.11

Finding the Fourth Proportional to 287,914.14, 431,949.67 and 88,230.11

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Solution

The fourth proportional to 287,914.14, 431,949.67 and 88,230.11 is: 132,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,914.14 : 431,949.67 = 88,230.11 : x
  2. Step 2: Convert to fraction form
    287,914.14/431,949.67 = 88,230.11/x
  3. Step 3: Cross multiply
    287,914.14x = 431,949.67 × 88,230.11
  4. Step 4: Simplify right side
    287,914.14x = 38,110,964,738.82
  5. Step 5: Solve for x
    x = 38,110,964,738.82/287,914.14
  6. Step 6: Final answer
    x = 132,369.20

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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.