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Finding the Fourth Proportional to 254,711.32, 351,494.21 and 145,811.98

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Solution

The fourth proportional to 254,711.32, 351,494.21 and 145,811.98 is: 201,216.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,711.32 : 351,494.21 = 145,811.98 : x
  2. Step 2: Convert to fraction form
    254,711.32/351,494.21 = 145,811.98/x
  3. Step 3: Cross multiply
    254,711.32x = 351,494.21 × 145,811.98
  4. Step 4: Simplify right side
    254,711.32x = 51,252,067,522.53
  5. Step 5: Solve for x
    x = 51,252,067,522.53/254,711.32
  6. Step 6: Final answer
    x = 201,216.29

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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.