Home / 278,314.26-384,072.08-150,987.12

Finding the Fourth Proportional to 278,314.26, 384,072.08 and 150,987.12

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Solution

The fourth proportional to 278,314.26, 384,072.08 and 150,987.12 is: 208,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,314.26 : 384,072.08 = 150,987.12 : x
  2. Step 2: Convert to fraction form
    278,314.26/384,072.08 = 150,987.12/x
  3. Step 3: Cross multiply
    278,314.26x = 384,072.08 × 150,987.12
  4. Step 4: Simplify right side
    278,314.26x = 57,989,936,476.67
  5. Step 5: Solve for x
    x = 57,989,936,476.67/278,314.26
  6. Step 6: Final answer
    x = 208,361.36

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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.