Home / 278,028.05-383,678.87-150,703.64

Finding the Fourth Proportional to 278,028.05, 383,678.87 and 150,703.64

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Solution

The fourth proportional to 278,028.05, 383,678.87 and 150,703.64 is: 207,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,028.05 : 383,678.87 = 150,703.64 : x
  2. Step 2: Convert to fraction form
    278,028.05/383,678.87 = 150,703.64/x
  3. Step 3: Cross multiply
    278,028.05x = 383,678.87 × 150,703.64
  4. Step 4: Simplify right side
    278,028.05x = 57,821,799,628.17
  5. Step 5: Solve for x
    x = 57,821,799,628.17/278,028.05
  6. Step 6: Final answer
    x = 207,971.10

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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.