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Finding the Fourth Proportional to 231,842.01, 319,946.04 and 129,866.67

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Solution

The fourth proportional to 231,842.01, 319,946.04 and 129,866.67 is: 179,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,842.01 : 319,946.04 = 129,866.67 : x
  2. Step 2: Convert to fraction form
    231,842.01/319,946.04 = 129,866.67/x
  3. Step 3: Cross multiply
    231,842.01x = 319,946.04 × 129,866.67
  4. Step 4: Simplify right side
    231,842.01x = 41,550,326,794.49
  5. Step 5: Solve for x
    x = 41,550,326,794.49/231,842.01
  6. Step 6: Final answer
    x = 179,218.28

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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.