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Finding the Fourth Proportional to 251,262.56, 376,742.09 and 101,328.21

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Solution

The fourth proportional to 251,262.56, 376,742.09 and 101,328.21 is: 151,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,262.56 : 376,742.09 = 101,328.21 : x
  2. Step 2: Convert to fraction form
    251,262.56/376,742.09 = 101,328.21/x
  3. Step 3: Cross multiply
    251,262.56x = 376,742.09 × 101,328.21
  4. Step 4: Simplify right side
    251,262.56x = 38,174,601,864.68
  5. Step 5: Solve for x
    x = 38,174,601,864.68/251,262.56
  6. Step 6: Final answer
    x = 151,931.12

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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.