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Finding the Fourth Proportional to 202,061.05, 302,697.91 and 122,979.13

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Solution

The fourth proportional to 202,061.05, 302,697.91 and 122,979.13 is: 184,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,061.05 : 302,697.91 = 122,979.13 : x
  2. Step 2: Convert to fraction form
    202,061.05/302,697.91 = 122,979.13/x
  3. Step 3: Cross multiply
    202,061.05x = 302,697.91 × 122,979.13
  4. Step 4: Simplify right side
    202,061.05x = 37,225,525,624.62
  5. Step 5: Solve for x
    x = 37,225,525,624.62/202,061.05
  6. Step 6: Final answer
    x = 184,229.10

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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.