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Finding the Fourth Proportional to 202,951.74, 280,186.02 and 122,399.76

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Solution

The fourth proportional to 202,951.74, 280,186.02 and 122,399.76 is: 168,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,951.74 : 280,186.02 = 122,399.76 : x
  2. Step 2: Convert to fraction form
    202,951.74/280,186.02 = 122,399.76/x
  3. Step 3: Cross multiply
    202,951.74x = 280,186.02 × 122,399.76
  4. Step 4: Simplify right side
    202,951.74x = 34,294,701,603.36
  5. Step 5: Solve for x
    x = 34,294,701,603.36/202,951.74
  6. Step 6: Final answer
    x = 168,979.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.