Home / 278,028.32-383,678.71-150,703.88

Finding the Fourth Proportional to 278,028.32, 383,678.71 and 150,703.88

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Solution

The fourth proportional to 278,028.32, 383,678.71 and 150,703.88 is: 207,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,028.32 : 383,678.71 = 150,703.88 : x
  2. Step 2: Convert to fraction form
    278,028.32/383,678.71 = 150,703.88/x
  3. Step 3: Cross multiply
    278,028.32x = 383,678.71 × 150,703.88
  4. Step 4: Simplify right side
    278,028.32x = 57,821,867,975.24
  5. Step 5: Solve for x
    x = 57,821,867,975.24/278,028.32
  6. Step 6: Final answer
    x = 207,971.15

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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.