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Finding the Fourth Proportional to 251,322.81, 376,983.36 and 101,561.31

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Solution

The fourth proportional to 251,322.81, 376,983.36 and 101,561.31 is: 152,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,322.81 : 376,983.36 = 101,561.31 : x
  2. Step 2: Convert to fraction form
    251,322.81/376,983.36 = 101,561.31/x
  3. Step 3: Cross multiply
    251,322.81x = 376,983.36 × 101,561.31
  4. Step 4: Simplify right side
    251,322.81x = 38,286,923,889.80
  5. Step 5: Solve for x
    x = 38,286,923,889.80/251,322.81
  6. Step 6: Final answer
    x = 152,341.62

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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.