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Finding the Fourth Proportional to 443,904.38, 612,587.74 and 239,955.29

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Solution

The fourth proportional to 443,904.38, 612,587.74 and 239,955.29 is: 331,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,904.38 : 612,587.74 = 239,955.29 : x
  2. Step 2: Convert to fraction form
    443,904.38/612,587.74 = 239,955.29/x
  3. Step 3: Cross multiply
    443,904.38x = 612,587.74 × 239,955.29
  4. Step 4: Simplify right side
    443,904.38x = 146,993,664,539.43
  5. Step 5: Solve for x
    x = 146,993,664,539.43/443,904.38
  6. Step 6: Final answer
    x = 331,138.13

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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.