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Finding the Fourth Proportional to 230,221.66, 345,381.90 and 130,429.66

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Solution

The fourth proportional to 230,221.66, 345,381.90 and 130,429.66 is: 195,672.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,221.66 : 345,381.90 = 130,429.66 : x
  2. Step 2: Convert to fraction form
    230,221.66/345,381.90 = 130,429.66/x
  3. Step 3: Cross multiply
    230,221.66x = 345,381.90 × 130,429.66
  4. Step 4: Simplify right side
    230,221.66x = 45,048,043,787.15
  5. Step 5: Solve for x
    x = 45,048,043,787.15/230,221.66
  6. Step 6: Final answer
    x = 195,672.48

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1.5x scale

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.