Home / 211,532.07-317,299.20-71,291.91

Finding the Fourth Proportional to 211,532.07, 317,299.20 and 71,291.91

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Solution

The fourth proportional to 211,532.07, 317,299.20 and 71,291.91 is: 106,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,532.07 : 317,299.20 = 71,291.91 : x
  2. Step 2: Convert to fraction form
    211,532.07/317,299.20 = 71,291.91/x
  3. Step 3: Cross multiply
    211,532.07x = 317,299.20 × 71,291.91
  4. Step 4: Simplify right side
    211,532.07x = 22,620,866,009.47
  5. Step 5: Solve for x
    x = 22,620,866,009.47/211,532.07
  6. Step 6: Final answer
    x = 106,938.23

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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.