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Finding the Fourth Proportional to 261,806.40, 392,709.60 and 235,234.35

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Solution

The fourth proportional to 261,806.40, 392,709.60 and 235,234.35 is: 352,851.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,806.40 : 392,709.60 = 235,234.35 : x
  2. Step 2: Convert to fraction form
    261,806.40/392,709.60 = 235,234.35/x
  3. Step 3: Cross multiply
    261,806.40x = 392,709.60 × 235,234.35
  4. Step 4: Simplify right side
    261,806.40x = 92,378,787,494.76
  5. Step 5: Solve for x
    x = 92,378,787,494.76/261,806.40
  6. Step 6: Final answer
    x = 352,851.53

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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.