Home / 211,165.26-291,408.14-115,675.40

Finding the Fourth Proportional to 211,165.26, 291,408.14 and 115,675.40

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Solution

The fourth proportional to 211,165.26, 291,408.14 and 115,675.40 is: 159,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,165.26 : 291,408.14 = 115,675.40 : x
  2. Step 2: Convert to fraction form
    211,165.26/291,408.14 = 115,675.40/x
  3. Step 3: Cross multiply
    211,165.26x = 291,408.14 × 115,675.40
  4. Step 4: Simplify right side
    211,165.26x = 33,708,753,157.76
  5. Step 5: Solve for x
    x = 33,708,753,157.76/211,165.26
  6. Step 6: Final answer
    x = 159,632.10

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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.