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Finding the Fourth Proportional to 298,115.04, 447,124 and 87,703.84

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Solution

The fourth proportional to 298,115.04, 447,124 and 87,703.84 is: 131,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,115.04 : 447,124 = 87,703.84 : x
  2. Step 2: Convert to fraction form
    298,115.04/447,124 = 87,703.84/x
  3. Step 3: Cross multiply
    298,115.04x = 447,124 × 87,703.84
  4. Step 4: Simplify right side
    298,115.04x = 39,214,491,756.16
  5. Step 5: Solve for x
    x = 39,214,491,756.16/298,115.04
  6. Step 6: Final answer
    x = 131,541.47

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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.