Home / 239,489.19-330,371.40-148,810.70

Finding the Fourth Proportional to 239,489.19, 330,371.40 and 148,810.70

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Solution

The fourth proportional to 239,489.19, 330,371.40 and 148,810.70 is: 205,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,489.19 : 330,371.40 = 148,810.70 : x
  2. Step 2: Convert to fraction form
    239,489.19/330,371.40 = 148,810.70/x
  3. Step 3: Cross multiply
    239,489.19x = 330,371.40 × 148,810.70
  4. Step 4: Simplify right side
    239,489.19x = 49,162,799,293.98
  5. Step 5: Solve for x
    x = 49,162,799,293.98/239,489.19
  6. Step 6: Final answer
    x = 205,281.91

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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.