Home / 211,815.64-292,306.40-115,019.65

Finding the Fourth Proportional to 211,815.64, 292,306.40 and 115,019.65

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Solution

The fourth proportional to 211,815.64, 292,306.40 and 115,019.65 is: 158,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,815.64 : 292,306.40 = 115,019.65 : x
  2. Step 2: Convert to fraction form
    211,815.64/292,306.40 = 115,019.65/x
  3. Step 3: Cross multiply
    211,815.64x = 292,306.40 × 115,019.65
  4. Step 4: Simplify right side
    211,815.64x = 33,620,979,820.76
  5. Step 5: Solve for x
    x = 33,620,979,820.76/211,815.64
  6. Step 6: Final answer
    x = 158,727.56

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1.5x scale

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.