Home / 213,025.29-319,233.45-156,421.28

Finding the Fourth Proportional to 213,025.29, 319,233.45 and 156,421.28

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Solution

The fourth proportional to 213,025.29, 319,233.45 and 156,421.28 is: 234,408.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,025.29 : 319,233.45 = 156,421.28 : x
  2. Step 2: Convert to fraction form
    213,025.29/319,233.45 = 156,421.28/x
  3. Step 3: Cross multiply
    213,025.29x = 319,233.45 × 156,421.28
  4. Step 4: Simplify right side
    213,025.29x = 49,934,904,456.79
  5. Step 5: Solve for x
    x = 49,934,904,456.79/213,025.29
  6. Step 6: Final answer
    x = 234,408.34

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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.