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Finding the Fourth Proportional to 356,367.90, 491,393.52 and 227,101.53

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Solution

The fourth proportional to 356,367.90, 491,393.52 and 227,101.53 is: 313,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,367.90 : 491,393.52 = 227,101.53 : x
  2. Step 2: Convert to fraction form
    356,367.90/491,393.52 = 227,101.53/x
  3. Step 3: Cross multiply
    356,367.90x = 491,393.52 × 227,101.53
  4. Step 4: Simplify right side
    356,367.90x = 111,596,220,224.09
  5. Step 5: Solve for x
    x = 111,596,220,224.09/356,367.90
  6. Step 6: Final answer
    x = 313,148.91

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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.