Home / 211,034.66-291,216.36-115,522.90

Finding the Fourth Proportional to 211,034.66, 291,216.36 and 115,522.90

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Solution

The fourth proportional to 211,034.66, 291,216.36 and 115,522.90 is: 159,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,034.66 : 291,216.36 = 115,522.90 : x
  2. Step 2: Convert to fraction form
    211,034.66/291,216.36 = 115,522.90/x
  3. Step 3: Cross multiply
    211,034.66x = 291,216.36 × 115,522.90
  4. Step 4: Simplify right side
    211,034.66x = 33,642,158,434.64
  5. Step 5: Solve for x
    x = 33,642,158,434.64/211,034.66
  6. Step 6: Final answer
    x = 159,415.32

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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.