Home / 239,476.14-330,525-137,571.50

Finding the Fourth Proportional to 239,476.14, 330,525 and 137,571.50

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Solution

The fourth proportional to 239,476.14, 330,525 and 137,571.50 is: 189,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,476.14 : 330,525 = 137,571.50 : x
  2. Step 2: Convert to fraction form
    239,476.14/330,525 = 137,571.50/x
  3. Step 3: Cross multiply
    239,476.14x = 330,525 × 137,571.50
  4. Step 4: Simplify right side
    239,476.14x = 45,470,818,384.88
  5. Step 5: Solve for x
    x = 45,470,818,384.88/239,476.14
  6. Step 6: Final answer
    x = 189,876.20

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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.