Home / 213,002.57-319,199.40-156,398.58

Finding the Fourth Proportional to 213,002.57, 319,199.40 and 156,398.58

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Solution

The fourth proportional to 213,002.57, 319,199.40 and 156,398.58 is: 234,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,002.57 : 319,199.40 = 156,398.58 : x
  2. Step 2: Convert to fraction form
    213,002.57/319,199.40 = 156,398.58/x
  3. Step 3: Cross multiply
    213,002.57x = 319,199.40 × 156,398.58
  4. Step 4: Simplify right side
    213,002.57x = 49,922,332,896.85
  5. Step 5: Solve for x
    x = 49,922,332,896.85/213,002.57
  6. Step 6: Final answer
    x = 234,374.32

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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.