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Finding the Fourth Proportional to 663,285.21, 994,927.82 and 164,649.21

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Solution

The fourth proportional to 663,285.21, 994,927.82 and 164,649.21 is: 246,973.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,285.21 : 994,927.82 = 164,649.21 : x
  2. Step 2: Convert to fraction form
    663,285.21/994,927.82 = 164,649.21/x
  3. Step 3: Cross multiply
    663,285.21x = 994,927.82 × 164,649.21
  4. Step 4: Simplify right side
    663,285.21x = 163,814,079,570.02
  5. Step 5: Solve for x
    x = 163,814,079,570.02/663,285.21
  6. Step 6: Final answer
    x = 246,973.82

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.