Home / 358,031.77-494,317.09-222,265.20

Finding the Fourth Proportional to 358,031.77, 494,317.09 and 222,265.20

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Solution

The fourth proportional to 358,031.77, 494,317.09 and 222,265.20 is: 306,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,031.77 : 494,317.09 = 222,265.20 : x
  2. Step 2: Convert to fraction form
    358,031.77/494,317.09 = 222,265.20/x
  3. Step 3: Cross multiply
    358,031.77x = 494,317.09 × 222,265.20
  4. Step 4: Simplify right side
    358,031.77x = 109,869,486,872.27
  5. Step 5: Solve for x
    x = 109,869,486,872.27/358,031.77
  6. Step 6: Final answer
    x = 306,870.78

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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.