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Finding the Fourth Proportional to 251,492.82, 377,263.86 and 91,612.20

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Solution

The fourth proportional to 251,492.82, 377,263.86 and 91,612.20 is: 137,427.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,492.82 : 377,263.86 = 91,612.20 : x
  2. Step 2: Convert to fraction form
    251,492.82/377,263.86 = 91,612.20/x
  3. Step 3: Cross multiply
    251,492.82x = 377,263.86 × 91,612.20
  4. Step 4: Simplify right side
    251,492.82x = 34,561,972,195.09
  5. Step 5: Solve for x
    x = 34,561,972,195.09/251,492.82
  6. Step 6: Final answer
    x = 137,427.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.