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Finding the Fourth Proportional to 230,322.34, 345,583.91 and 80,669.98

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Solution

The fourth proportional to 230,322.34, 345,583.91 and 80,669.98 is: 121,040.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,322.34 : 345,583.91 = 80,669.98 : x
  2. Step 2: Convert to fraction form
    230,322.34/345,583.91 = 80,669.98/x
  3. Step 3: Cross multiply
    230,322.34x = 345,583.91 × 80,669.98
  4. Step 4: Simplify right side
    230,322.34x = 27,878,247,108.02
  5. Step 5: Solve for x
    x = 27,878,247,108.02/230,322.34
  6. Step 6: Final answer
    x = 121,040.13

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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.