Home / 281,161.26-388,001.91-153,836.58

Finding the Fourth Proportional to 281,161.26, 388,001.91 and 153,836.58

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Solution

The fourth proportional to 281,161.26, 388,001.91 and 153,836.58 is: 212,294.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,161.26 : 388,001.91 = 153,836.58 : x
  2. Step 2: Convert to fraction form
    281,161.26/388,001.91 = 153,836.58/x
  3. Step 3: Cross multiply
    281,161.26x = 388,001.91 × 153,836.58
  4. Step 4: Simplify right side
    281,161.26x = 59,688,886,867.87
  5. Step 5: Solve for x
    x = 59,688,886,867.87/281,161.26
  6. Step 6: Final answer
    x = 212,294.14

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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.