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Finding the Fourth Proportional to 251,271.79, 376,945.02 and 82,761.01

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Solution

The fourth proportional to 251,271.79, 376,945.02 and 82,761.01 is: 124,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,271.79 : 376,945.02 = 82,761.01 : x
  2. Step 2: Convert to fraction form
    251,271.79/376,945.02 = 82,761.01/x
  3. Step 3: Cross multiply
    251,271.79x = 376,945.02 × 82,761.01
  4. Step 4: Simplify right side
    251,271.79x = 31,196,349,627.31
  5. Step 5: Solve for x
    x = 31,196,349,627.31/251,271.79
  6. Step 6: Final answer
    x = 124,153.81

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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.