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Finding the Fourth Proportional to 239,638.72, 330,642.46 and 146,480.82

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Solution

The fourth proportional to 239,638.72, 330,642.46 and 146,480.82 is: 202,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,638.72 : 330,642.46 = 146,480.82 : x
  2. Step 2: Convert to fraction form
    239,638.72/330,642.46 = 146,480.82/x
  3. Step 3: Cross multiply
    239,638.72x = 330,642.46 × 146,480.82
  4. Step 4: Simplify right side
    239,638.72x = 48,432,778,667.62
  5. Step 5: Solve for x
    x = 48,432,778,667.62/239,638.72
  6. Step 6: Final answer
    x = 202,107.48

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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.