Home / 281,268.72-388,151.86-152,207.18

Finding the Fourth Proportional to 281,268.72, 388,151.86 and 152,207.18

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Solution

The fourth proportional to 281,268.72, 388,151.86 and 152,207.18 is: 210,046.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,268.72 : 388,151.86 = 152,207.18 : x
  2. Step 2: Convert to fraction form
    281,268.72/388,151.86 = 152,207.18/x
  3. Step 3: Cross multiply
    281,268.72x = 388,151.86 × 152,207.18
  4. Step 4: Simplify right side
    281,268.72x = 59,079,497,701.08
  5. Step 5: Solve for x
    x = 59,079,497,701.08/281,268.72
  6. Step 6: Final answer
    x = 210,046.46

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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.