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Finding the Fourth Proportional to 167,279.92, 250,771.98 and 128,012.32

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Solution

The fourth proportional to 167,279.92, 250,771.98 and 128,012.32 is: 191,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,279.92 : 250,771.98 = 128,012.32 : x
  2. Step 2: Convert to fraction form
    167,279.92/250,771.98 = 128,012.32/x
  3. Step 3: Cross multiply
    167,279.92x = 250,771.98 × 128,012.32
  4. Step 4: Simplify right side
    167,279.92x = 32,101,902,950.79
  5. Step 5: Solve for x
    x = 32,101,902,950.79/167,279.92
  6. Step 6: Final answer
    x = 191,905.30

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1.5x scale

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.