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Finding the Fourth Proportional to 661,416.30, 992,122.29 and 181,644.54

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Solution

The fourth proportional to 661,416.30, 992,122.29 and 181,644.54 is: 272,466.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,416.30 : 992,122.29 = 181,644.54 : x
  2. Step 2: Convert to fraction form
    661,416.30/992,122.29 = 181,644.54/x
  3. Step 3: Cross multiply
    661,416.30x = 992,122.29 × 181,644.54
  4. Step 4: Simplify right side
    661,416.30x = 180,213,596,990.80
  5. Step 5: Solve for x
    x = 180,213,596,990.80/661,416.30
  6. Step 6: Final answer
    x = 272,466.22

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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.