Home / 251,579.34-347,179.50-138,402.12

Finding the Fourth Proportional to 251,579.34, 347,179.50 and 138,402.12

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Solution

The fourth proportional to 251,579.34, 347,179.50 and 138,402.12 is: 190,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,579.34 : 347,179.50 = 138,402.12 : x
  2. Step 2: Convert to fraction form
    251,579.34/347,179.50 = 138,402.12/x
  3. Step 3: Cross multiply
    251,579.34x = 347,179.50 × 138,402.12
  4. Step 4: Simplify right side
    251,579.34x = 48,050,378,820.54
  5. Step 5: Solve for x
    x = 48,050,378,820.54/251,579.34
  6. Step 6: Final answer
    x = 190,994.93

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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.