Home / 231,899.04-319,846.59-155,504.70

Finding the Fourth Proportional to 231,899.04, 319,846.59 and 155,504.70

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Solution

The fourth proportional to 231,899.04, 319,846.59 and 155,504.70 is: 214,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,899.04 : 319,846.59 = 155,504.70 : x
  2. Step 2: Convert to fraction form
    231,899.04/319,846.59 = 155,504.70/x
  3. Step 3: Cross multiply
    231,899.04x = 319,846.59 × 155,504.70
  4. Step 4: Simplify right side
    231,899.04x = 49,737,648,023.97
  5. Step 5: Solve for x
    x = 49,737,648,023.97/231,899.04
  6. Step 6: Final answer
    x = 214,479.75

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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.