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Finding the Fourth Proportional to 321,203.64, 443,278.98 and 183,423.25

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Solution

The fourth proportional to 321,203.64, 443,278.98 and 183,423.25 is: 253,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,203.64 : 443,278.98 = 183,423.25 : x
  2. Step 2: Convert to fraction form
    321,203.64/443,278.98 = 183,423.25/x
  3. Step 3: Cross multiply
    321,203.64x = 443,278.98 × 183,423.25
  4. Step 4: Simplify right side
    321,203.64x = 81,307,671,722.38
  5. Step 5: Solve for x
    x = 81,307,671,722.38/321,203.64
  6. Step 6: Final answer
    x = 253,134.34

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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.