Home / 281,529.97-388,550.02-172,615.05

Finding the Fourth Proportional to 281,529.97, 388,550.02 and 172,615.05

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Solution

The fourth proportional to 281,529.97, 388,550.02 and 172,615.05 is: 238,232.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,529.97 : 388,550.02 = 172,615.05 : x
  2. Step 2: Convert to fraction form
    281,529.97/388,550.02 = 172,615.05/x
  3. Step 3: Cross multiply
    281,529.97x = 388,550.02 × 172,615.05
  4. Step 4: Simplify right side
    281,529.97x = 67,069,581,129.80
  5. Step 5: Solve for x
    x = 67,069,581,129.80/281,529.97
  6. Step 6: Final answer
    x = 238,232.47

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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.