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Finding the Fourth Proportional to 239,467.03, 330,512.40 and 137,562.40

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Solution

The fourth proportional to 239,467.03, 330,512.40 and 137,562.40 is: 189,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,467.03 : 330,512.40 = 137,562.40 : x
  2. Step 2: Convert to fraction form
    239,467.03/330,512.40 = 137,562.40/x
  3. Step 3: Cross multiply
    239,467.03x = 330,512.40 × 137,562.40
  4. Step 4: Simplify right side
    239,467.03x = 45,466,079,386.90
  5. Step 5: Solve for x
    x = 45,466,079,386.90/239,467.03
  6. Step 6: Final answer
    x = 189,863.63

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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.