Home / 213,492.36-319,979.60-156,806.85

Finding the Fourth Proportional to 213,492.36, 319,979.60 and 156,806.85

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Solution

The fourth proportional to 213,492.36, 319,979.60 and 156,806.85 is: 235,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,492.36 : 319,979.60 = 156,806.85 : x
  2. Step 2: Convert to fraction form
    213,492.36/319,979.60 = 156,806.85/x
  3. Step 3: Cross multiply
    213,492.36x = 319,979.60 × 156,806.85
  4. Step 4: Simplify right side
    213,492.36x = 50,174,994,144.17
  5. Step 5: Solve for x
    x = 50,174,994,144.17/213,492.36
  6. Step 6: Final answer
    x = 235,020.09

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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.