Home / 211,148.52-291,385.02-115,658.65

Finding the Fourth Proportional to 211,148.52, 291,385.02 and 115,658.65

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Solution

The fourth proportional to 211,148.52, 291,385.02 and 115,658.65 is: 159,608.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,148.52 : 291,385.02 = 115,658.65 : x
  2. Step 2: Convert to fraction form
    211,148.52/291,385.02 = 115,658.65/x
  3. Step 3: Cross multiply
    211,148.52x = 291,385.02 × 115,658.65
  4. Step 4: Simplify right side
    211,148.52x = 33,701,198,043.42
  5. Step 5: Solve for x
    x = 33,701,198,043.42/211,148.52
  6. Step 6: Final answer
    x = 159,608.97

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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.