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Finding the Fourth Proportional to 443,916, 612,604.08 and 242,712

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Solution

The fourth proportional to 443,916, 612,604.08 and 242,712 is: 334,942.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,916 : 612,604.08 = 242,712 : x
  2. Step 2: Convert to fraction form
    443,916/612,604.08 = 242,712/x
  3. Step 3: Cross multiply
    443,916x = 612,604.08 × 242,712
  4. Step 4: Simplify right side
    443,916x = 148,686,361,464.96
  5. Step 5: Solve for x
    x = 148,686,361,464.96/443,916
  6. Step 6: Final answer
    x = 334,942.56

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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.