Home / 211,308.30-291,604.11-115,820.94

Finding the Fourth Proportional to 211,308.30, 291,604.11 and 115,820.94

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Solution

The fourth proportional to 211,308.30, 291,604.11 and 115,820.94 is: 159,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,308.30 : 291,604.11 = 115,820.94 : x
  2. Step 2: Convert to fraction form
    211,308.30/291,604.11 = 115,820.94/x
  3. Step 3: Cross multiply
    211,308.30x = 291,604.11 × 115,820.94
  4. Step 4: Simplify right side
    211,308.30x = 33,773,862,128.06
  5. Step 5: Solve for x
    x = 33,773,862,128.06/211,308.30
  6. Step 6: Final answer
    x = 159,832.16

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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.