Home / 251,949.63-347,690.43-138,772.38

Finding the Fourth Proportional to 251,949.63, 347,690.43 and 138,772.38

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Solution

The fourth proportional to 251,949.63, 347,690.43 and 138,772.38 is: 191,505.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,949.63 : 347,690.43 = 138,772.38 : x
  2. Step 2: Convert to fraction form
    251,949.63/347,690.43 = 138,772.38/x
  3. Step 3: Cross multiply
    251,949.63x = 347,690.43 × 138,772.38
  4. Step 4: Simplify right side
    251,949.63x = 48,249,828,474.32
  5. Step 5: Solve for x
    x = 48,249,828,474.32/251,949.63
  6. Step 6: Final answer
    x = 191,505.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.