Home / 251,495.15-347,056.38-138,317.90

Finding the Fourth Proportional to 251,495.15, 347,056.38 and 138,317.90

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Solution

The fourth proportional to 251,495.15, 347,056.38 and 138,317.90 is: 190,874.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,495.15 : 347,056.38 = 138,317.90 : x
  2. Step 2: Convert to fraction form
    251,495.15/347,056.38 = 138,317.90/x
  3. Step 3: Cross multiply
    251,495.15x = 347,056.38 × 138,317.90
  4. Step 4: Simplify right side
    251,495.15x = 48,004,107,927.92
  5. Step 5: Solve for x
    x = 48,004,107,927.92/251,495.15
  6. Step 6: Final answer
    x = 190,874.89

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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.