Home / 315,067.74-434,776.14-179,082.78

Finding the Fourth Proportional to 315,067.74, 434,776.14 and 179,082.78

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Solution

The fourth proportional to 315,067.74, 434,776.14 and 179,082.78 is: 247,124.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,067.74 : 434,776.14 = 179,082.78 : x
  2. Step 2: Convert to fraction form
    315,067.74/434,776.14 = 179,082.78/x
  3. Step 3: Cross multiply
    315,067.74x = 434,776.14 × 179,082.78
  4. Step 4: Simplify right side
    315,067.74x = 77,860,919,828.87
  5. Step 5: Solve for x
    x = 77,860,919,828.87/315,067.74
  6. Step 6: Final answer
    x = 247,124.38

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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.