Home / 222,628.30-307,244.55-137,772.70

Finding the Fourth Proportional to 222,628.30, 307,244.55 and 137,772.70

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Solution

The fourth proportional to 222,628.30, 307,244.55 and 137,772.70 is: 190,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,628.30 : 307,244.55 = 137,772.70 : x
  2. Step 2: Convert to fraction form
    222,628.30/307,244.55 = 137,772.70/x
  3. Step 3: Cross multiply
    222,628.30x = 307,244.55 × 137,772.70
  4. Step 4: Simplify right side
    222,628.30x = 42,329,911,213.79
  5. Step 5: Solve for x
    x = 42,329,911,213.79/222,628.30
  6. Step 6: Final answer
    x = 190,137.15

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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.