Home / 251,810.12-347,517.60-138,653.12

Finding the Fourth Proportional to 251,810.12, 347,517.60 and 138,653.12

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Solution

The fourth proportional to 251,810.12, 347,517.60 and 138,653.12 is: 191,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,810.12 : 347,517.60 = 138,653.12 : x
  2. Step 2: Convert to fraction form
    251,810.12/347,517.60 = 138,653.12/x
  3. Step 3: Cross multiply
    251,810.12x = 347,517.60 × 138,653.12
  4. Step 4: Simplify right side
    251,810.12x = 48,184,399,494.91
  5. Step 5: Solve for x
    x = 48,184,399,494.91/251,810.12
  6. Step 6: Final answer
    x = 191,352.12

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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.