Home / 211,391.14-317,159.64-132,411.28

Finding the Fourth Proportional to 211,391.14, 317,159.64 and 132,411.28

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Solution

The fourth proportional to 211,391.14, 317,159.64 and 132,411.28 is: 198,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,391.14 : 317,159.64 = 132,411.28 : x
  2. Step 2: Convert to fraction form
    211,391.14/317,159.64 = 132,411.28/x
  3. Step 3: Cross multiply
    211,391.14x = 317,159.64 × 132,411.28
  4. Step 4: Simplify right side
    211,391.14x = 41,995,513,896.74
  5. Step 5: Solve for x
    x = 41,995,513,896.74/211,391.14
  6. Step 6: Final answer
    x = 198,662.60

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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.