Home / 251,651.25-347,281.16-138,476.43

Finding the Fourth Proportional to 251,651.25, 347,281.16 and 138,476.43

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Solution

The fourth proportional to 251,651.25, 347,281.16 and 138,476.43 is: 191,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,651.25 : 347,281.16 = 138,476.43 : x
  2. Step 2: Convert to fraction form
    251,651.25/347,281.16 = 138,476.43/x
  3. Step 3: Cross multiply
    251,651.25x = 347,281.16 × 138,476.43
  4. Step 4: Simplify right side
    251,651.25x = 48,090,254,550.68
  5. Step 5: Solve for x
    x = 48,090,254,550.68/251,651.25
  6. Step 6: Final answer
    x = 191,098.81

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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.