Home / 281,448.15-388,399.03-152,388.02

Finding the Fourth Proportional to 281,448.15, 388,399.03 and 152,388.02

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Solution

The fourth proportional to 281,448.15, 388,399.03 and 152,388.02 is: 210,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,448.15 : 388,399.03 = 152,388.02 : x
  2. Step 2: Convert to fraction form
    281,448.15/388,399.03 = 152,388.02/x
  3. Step 3: Cross multiply
    281,448.15x = 388,399.03 × 152,388.02
  4. Step 4: Simplify right side
    281,448.15x = 59,187,356,828.66
  5. Step 5: Solve for x
    x = 59,187,356,828.66/281,448.15
  6. Step 6: Final answer
    x = 210,295.78

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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.