Home / 298,145.32-447,221.12-87,787.24

Finding the Fourth Proportional to 298,145.32, 447,221.12 and 87,787.24

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Solution

The fourth proportional to 298,145.32, 447,221.12 and 87,787.24 is: 131,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,145.32 : 447,221.12 = 87,787.24 : x
  2. Step 2: Convert to fraction form
    298,145.32/447,221.12 = 87,787.24/x
  3. Step 3: Cross multiply
    298,145.32x = 447,221.12 × 87,787.24
  4. Step 4: Simplify right side
    298,145.32x = 39,260,307,794.51
  5. Step 5: Solve for x
    x = 39,260,307,794.51/298,145.32
  6. Step 6: Final answer
    x = 131,681.78

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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.