Home / 211,031.42-291,211.86-115,519.66

Finding the Fourth Proportional to 211,031.42, 291,211.86 and 115,519.66

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Solution

The fourth proportional to 211,031.42, 291,211.86 and 115,519.66 is: 159,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,031.42 : 291,211.86 = 115,519.66 : x
  2. Step 2: Convert to fraction form
    211,031.42/291,211.86 = 115,519.66/x
  3. Step 3: Cross multiply
    211,031.42x = 291,211.86 × 115,519.66
  4. Step 4: Simplify right side
    211,031.42x = 33,640,695,055.17
  5. Step 5: Solve for x
    x = 33,640,695,055.17/211,031.42
  6. Step 6: Final answer
    x = 159,410.84

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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.