Home / 211,063.20-291,264.32-115,569.90

Finding the Fourth Proportional to 211,063.20, 291,264.32 and 115,569.90

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Solution

The fourth proportional to 211,063.20, 291,264.32 and 115,569.90 is: 159,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,063.20 : 291,264.32 = 115,569.90 : x
  2. Step 2: Convert to fraction form
    211,063.20/291,264.32 = 115,569.90/x
  3. Step 3: Cross multiply
    211,063.20x = 291,264.32 × 115,569.90
  4. Step 4: Simplify right side
    211,063.20x = 33,661,388,335.97
  5. Step 5: Solve for x
    x = 33,661,388,335.97/211,063.20
  6. Step 6: Final answer
    x = 159,484.88

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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.