Home / 212,784.85-319,278.66-132,801.13

Finding the Fourth Proportional to 212,784.85, 319,278.66 and 132,801.13

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Solution

The fourth proportional to 212,784.85, 319,278.66 and 132,801.13 is: 199,264.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,784.85 : 319,278.66 = 132,801.13 : x
  2. Step 2: Convert to fraction form
    212,784.85/319,278.66 = 132,801.13/x
  3. Step 3: Cross multiply
    212,784.85x = 319,278.66 × 132,801.13
  4. Step 4: Simplify right side
    212,784.85x = 42,400,566,832.89
  5. Step 5: Solve for x
    x = 42,400,566,832.89/212,784.85
  6. Step 6: Final answer
    x = 199,264.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.