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Finding the Fourth Proportional to 443,831, 612,486.80 and 242,627

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Solution

The fourth proportional to 443,831, 612,486.80 and 242,627 is: 334,825.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,831 : 612,486.80 = 242,627 : x
  2. Step 2: Convert to fraction form
    443,831/612,486.80 = 242,627/x
  3. Step 3: Cross multiply
    443,831x = 612,486.80 × 242,627
  4. Step 4: Simplify right side
    443,831x = 148,605,834,823.60
  5. Step 5: Solve for x
    x = 148,605,834,823.60/443,831
  6. Step 6: Final answer
    x = 334,825.27

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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.