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Finding the Fourth Proportional to 356,651.54, 492,229.47 and 220,729.22

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Solution

The fourth proportional to 356,651.54, 492,229.47 and 220,729.22 is: 304,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,651.54 : 492,229.47 = 220,729.22 : x
  2. Step 2: Convert to fraction form
    356,651.54/492,229.47 = 220,729.22/x
  3. Step 3: Cross multiply
    356,651.54x = 492,229.47 × 220,729.22
  4. Step 4: Simplify right side
    356,651.54x = 108,649,423,409.32
  5. Step 5: Solve for x
    x = 108,649,423,409.32/356,651.54
  6. Step 6: Final answer
    x = 304,637.48

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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.