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Finding the Fourth Proportional to 321,625.68, 443,827.80 and 178,373.04

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Solution

The fourth proportional to 321,625.68, 443,827.80 and 178,373.04 is: 246,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,625.68 : 443,827.80 = 178,373.04 : x
  2. Step 2: Convert to fraction form
    321,625.68/443,827.80 = 178,373.04/x
  3. Step 3: Cross multiply
    321,625.68x = 443,827.80 × 178,373.04
  4. Step 4: Simplify right side
    321,625.68x = 79,166,913,922.51
  5. Step 5: Solve for x
    x = 79,166,913,922.51/321,625.68
  6. Step 6: Final answer
    x = 246,146.12

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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.