Home / 239,485.38-330,366.14-148,806.89

Finding the Fourth Proportional to 239,485.38, 330,366.14 and 148,806.89

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Solution

The fourth proportional to 239,485.38, 330,366.14 and 148,806.89 is: 205,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,485.38 : 330,366.14 = 148,806.89 : x
  2. Step 2: Convert to fraction form
    239,485.38/330,366.14 = 148,806.89/x
  3. Step 3: Cross multiply
    239,485.38x = 330,366.14 × 148,806.89
  4. Step 4: Simplify right side
    239,485.38x = 49,160,757,255.74
  5. Step 5: Solve for x
    x = 49,160,757,255.74/239,485.38
  6. Step 6: Final answer
    x = 205,276.66

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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.