Home / 211,811.64-292,300.88-115,015.65

Finding the Fourth Proportional to 211,811.64, 292,300.88 and 115,015.65

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Solution

The fourth proportional to 211,811.64, 292,300.88 and 115,015.65 is: 158,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,811.64 : 292,300.88 = 115,015.65 : x
  2. Step 2: Convert to fraction form
    211,811.64/292,300.88 = 115,015.65/x
  3. Step 3: Cross multiply
    211,811.64x = 292,300.88 × 115,015.65
  4. Step 4: Simplify right side
    211,811.64x = 33,619,175,133.69
  5. Step 5: Solve for x
    x = 33,619,175,133.69/211,811.64
  6. Step 6: Final answer
    x = 158,722.04

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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.