Home / 211,441.59-291,507.09-167,978.34

Finding the Fourth Proportional to 211,441.59, 291,507.09 and 167,978.34

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Solution

The fourth proportional to 211,441.59, 291,507.09 and 167,978.34 is: 231,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,441.59 : 291,507.09 = 167,978.34 : x
  2. Step 2: Convert to fraction form
    211,441.59/291,507.09 = 167,978.34/x
  3. Step 3: Cross multiply
    211,441.59x = 291,507.09 × 167,978.34
  4. Step 4: Simplify right side
    211,441.59x = 48,966,877,076.43
  5. Step 5: Solve for x
    x = 48,966,877,076.43/211,441.59
  6. Step 6: Final answer
    x = 231,585.83

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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.