Home / 281,539.02-388,523.94-154,219.20

Finding the Fourth Proportional to 281,539.02, 388,523.94 and 154,219.20

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Solution

The fourth proportional to 281,539.02, 388,523.94 and 154,219.20 is: 212,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,539.02 : 388,523.94 = 154,219.20 : x
  2. Step 2: Convert to fraction form
    281,539.02/388,523.94 = 154,219.20/x
  3. Step 3: Cross multiply
    281,539.02x = 388,523.94 × 154,219.20
  4. Step 4: Simplify right side
    281,539.02x = 59,917,851,207.65
  5. Step 5: Solve for x
    x = 59,917,851,207.65/281,539.02
  6. Step 6: Final answer
    x = 212,822.55

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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.