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Finding the Fourth Proportional to 222,786.12, 307,461.12 and 127,290.76

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Solution

The fourth proportional to 222,786.12, 307,461.12 and 127,290.76 is: 175,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,786.12 : 307,461.12 = 127,290.76 : x
  2. Step 2: Convert to fraction form
    222,786.12/307,461.12 = 127,290.76/x
  3. Step 3: Cross multiply
    222,786.12x = 307,461.12 × 127,290.76
  4. Step 4: Simplify right side
    222,786.12x = 39,136,959,635.25
  5. Step 5: Solve for x
    x = 39,136,959,635.25/222,786.12
  6. Step 6: Final answer
    x = 175,670.55

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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.