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Finding the Fourth Proportional to 356,648.97, 492,225.93 and 220,726.65

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Solution

The fourth proportional to 356,648.97, 492,225.93 and 220,726.65 is: 304,633.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,648.97 : 492,225.93 = 220,726.65 : x
  2. Step 2: Convert to fraction form
    356,648.97/492,225.93 = 220,726.65/x
  3. Step 3: Cross multiply
    356,648.97x = 492,225.93 × 220,726.65
  4. Step 4: Simplify right side
    356,648.97x = 108,647,380,572.04
  5. Step 5: Solve for x
    x = 108,647,380,572.04/356,648.97
  6. Step 6: Final answer
    x = 304,633.94

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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.