Home / 281,584.64-388,584.79-152,520.20

Finding the Fourth Proportional to 281,584.64, 388,584.79 and 152,520.20

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Solution

The fourth proportional to 281,584.64, 388,584.79 and 152,520.20 is: 210,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,584.64 : 388,584.79 = 152,520.20 : x
  2. Step 2: Convert to fraction form
    281,584.64/388,584.79 = 152,520.20/x
  3. Step 3: Cross multiply
    281,584.64x = 388,584.79 × 152,520.20
  4. Step 4: Simplify right side
    281,584.64x = 59,267,027,563.53
  5. Step 5: Solve for x
    x = 59,267,027,563.53/281,584.64
  6. Step 6: Final answer
    x = 210,476.78

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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.