Home / 212,938.27-319,628.94-156,841.72

Finding the Fourth Proportional to 212,938.27, 319,628.94 and 156,841.72

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Solution

The fourth proportional to 212,938.27, 319,628.94 and 156,841.72 is: 235,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,938.27 : 319,628.94 = 156,841.72 : x
  2. Step 2: Convert to fraction form
    212,938.27/319,628.94 = 156,841.72/x
  3. Step 3: Cross multiply
    212,938.27x = 319,628.94 × 156,841.72
  4. Step 4: Simplify right side
    212,938.27x = 50,131,152,711.38
  5. Step 5: Solve for x
    x = 50,131,152,711.38/212,938.27
  6. Step 6: Final answer
    x = 235,425.75

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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.