Home / 461,278.61-691,913.79-145,735.50

Finding the Fourth Proportional to 461,278.61, 691,913.79 and 145,735.50

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Solution

The fourth proportional to 461,278.61, 691,913.79 and 145,735.50 is: 218,601.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,278.61 : 691,913.79 = 145,735.50 : x
  2. Step 2: Convert to fraction form
    461,278.61/691,913.79 = 145,735.50/x
  3. Step 3: Cross multiply
    461,278.61x = 691,913.79 × 145,735.50
  4. Step 4: Simplify right side
    461,278.61x = 100,836,402,142.55
  5. Step 5: Solve for x
    x = 100,836,402,142.55/461,278.61
  6. Step 6: Final answer
    x = 218,601.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.