Home / 239,108.28-330,128.20-148,599.28

Finding the Fourth Proportional to 239,108.28, 330,128.20 and 148,599.28

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Solution

The fourth proportional to 239,108.28, 330,128.20 and 148,599.28 is: 205,165.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,108.28 : 330,128.20 = 148,599.28 : x
  2. Step 2: Convert to fraction form
    239,108.28/330,128.20 = 148,599.28/x
  3. Step 3: Cross multiply
    239,108.28x = 330,128.20 × 148,599.28
  4. Step 4: Simplify right side
    239,108.28x = 49,056,812,827.70
  5. Step 5: Solve for x
    x = 49,056,812,827.70/239,108.28
  6. Step 6: Final answer
    x = 205,165.68

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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.