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Finding the Fourth Proportional to 484,307.21, 668,344.30 and 269,447.42

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Solution

The fourth proportional to 484,307.21, 668,344.30 and 269,447.42 is: 371,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,307.21 : 668,344.30 = 269,447.42 : x
  2. Step 2: Convert to fraction form
    484,307.21/668,344.30 = 269,447.42/x
  3. Step 3: Cross multiply
    484,307.21x = 668,344.30 × 269,447.42
  4. Step 4: Simplify right side
    484,307.21x = 180,083,648,303.95
  5. Step 5: Solve for x
    x = 180,083,648,303.95/484,307.21
  6. Step 6: Final answer
    x = 371,837.63

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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.