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Finding the Fourth Proportional to 291,937.82, 402,721.22 and 253,611.32

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Solution

The fourth proportional to 291,937.82, 402,721.22 and 253,611.32 is: 349,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,937.82 : 402,721.22 = 253,611.32 : x
  2. Step 2: Convert to fraction form
    291,937.82/402,721.22 = 253,611.32/x
  3. Step 3: Cross multiply
    291,937.82x = 402,721.22 × 253,611.32
  4. Step 4: Simplify right side
    291,937.82x = 102,134,660,196.21
  5. Step 5: Solve for x
    x = 102,134,660,196.21/291,937.82
  6. Step 6: Final answer
    x = 349,850.73

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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.