Home / 211,410.38-291,749.16-115,916.84

Finding the Fourth Proportional to 211,410.38, 291,749.16 and 115,916.84

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Solution

The fourth proportional to 211,410.38, 291,749.16 and 115,916.84 is: 159,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,410.38 : 291,749.16 = 115,916.84 : x
  2. Step 2: Convert to fraction form
    211,410.38/291,749.16 = 115,916.84/x
  3. Step 3: Cross multiply
    211,410.38x = 291,749.16 × 115,916.84
  4. Step 4: Simplify right side
    211,410.38x = 33,818,640,699.85
  5. Step 5: Solve for x
    x = 33,818,640,699.85/211,410.38
  6. Step 6: Final answer
    x = 159,966.79

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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.