Home / 251,494.12-347,064.78-138,318.76

Finding the Fourth Proportional to 251,494.12, 347,064.78 and 138,318.76

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Solution

The fourth proportional to 251,494.12, 347,064.78 and 138,318.76 is: 190,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,494.12 : 347,064.78 = 138,318.76 : x
  2. Step 2: Convert to fraction form
    251,494.12/347,064.78 = 138,318.76/x
  3. Step 3: Cross multiply
    251,494.12x = 347,064.78 × 138,318.76
  4. Step 4: Simplify right side
    251,494.12x = 48,005,570,009.27
  5. Step 5: Solve for x
    x = 48,005,570,009.27/251,494.12
  6. Step 6: Final answer
    x = 190,881.48

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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.