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Finding the Fourth Proportional to 239,745.42, 330,795.90 and 137,763.18

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Solution

The fourth proportional to 239,745.42, 330,795.90 and 137,763.18 is: 190,082.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,745.42 : 330,795.90 = 137,763.18 : x
  2. Step 2: Convert to fraction form
    239,745.42/330,795.90 = 137,763.18/x
  3. Step 3: Cross multiply
    239,745.42x = 330,795.90 × 137,763.18
  4. Step 4: Simplify right side
    239,745.42x = 45,571,495,114.96
  5. Step 5: Solve for x
    x = 45,571,495,114.96/239,745.42
  6. Step 6: Final answer
    x = 190,082.86

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1.5x scale

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.