Home / 251,981.08-347,734.82-138,803.56

Finding the Fourth Proportional to 251,981.08, 347,734.82 and 138,803.56

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Solution

The fourth proportional to 251,981.08, 347,734.82 and 138,803.56 is: 191,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,981.08 : 347,734.82 = 138,803.56 : x
  2. Step 2: Convert to fraction form
    251,981.08/347,734.82 = 138,803.56/x
  3. Step 3: Cross multiply
    251,981.08x = 347,734.82 × 138,803.56
  4. Step 4: Simplify right side
    251,981.08x = 48,266,830,951.96
  5. Step 5: Solve for x
    x = 48,266,830,951.96/251,981.08
  6. Step 6: Final answer
    x = 191,549.42

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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.