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Finding the Fourth Proportional to 213,059.52, 319,506.26 and 79,867.13

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Solution

The fourth proportional to 213,059.52, 319,506.26 and 79,867.13 is: 119,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,059.52 : 319,506.26 = 79,867.13 : x
  2. Step 2: Convert to fraction form
    213,059.52/319,506.26 = 79,867.13/x
  3. Step 3: Cross multiply
    213,059.52x = 319,506.26 × 79,867.13
  4. Step 4: Simplify right side
    213,059.52x = 25,518,046,006.37
  5. Step 5: Solve for x
    x = 25,518,046,006.37/213,059.52
  6. Step 6: Final answer
    x = 119,769.56

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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.