Home / 281,859.24-388,965.86-154,532.20

Finding the Fourth Proportional to 281,859.24, 388,965.86 and 154,532.20

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Solution

The fourth proportional to 281,859.24, 388,965.86 and 154,532.20 is: 213,254.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,859.24 : 388,965.86 = 154,532.20 : x
  2. Step 2: Convert to fraction form
    281,859.24/388,965.86 = 154,532.20/x
  3. Step 3: Cross multiply
    281,859.24x = 388,965.86 × 154,532.20
  4. Step 4: Simplify right side
    281,859.24x = 60,107,750,070.69
  5. Step 5: Solve for x
    x = 60,107,750,070.69/281,859.24
  6. Step 6: Final answer
    x = 213,254.50

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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.