Home / 212,886.83-319,551.68-156,790.28

Finding the Fourth Proportional to 212,886.83, 319,551.68 and 156,790.28

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Solution

The fourth proportional to 212,886.83, 319,551.68 and 156,790.28 is: 235,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,886.83 : 319,551.68 = 156,790.28 : x
  2. Step 2: Convert to fraction form
    212,886.83/319,551.68 = 156,790.28/x
  3. Step 3: Cross multiply
    212,886.83x = 319,551.68 × 156,790.28
  4. Step 4: Simplify right side
    212,886.83x = 50,102,598,572.53
  5. Step 5: Solve for x
    x = 50,102,598,572.53/212,886.83
  6. Step 6: Final answer
    x = 235,348.51

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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.