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Finding the Fourth Proportional to 253,854.76, 379,923.87 and 247,023.67

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Solution

The fourth proportional to 253,854.76, 379,923.87 and 247,023.67 is: 369,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,854.76 : 379,923.87 = 247,023.67 : x
  2. Step 2: Convert to fraction form
    253,854.76/379,923.87 = 247,023.67/x
  3. Step 3: Cross multiply
    253,854.76x = 379,923.87 × 247,023.67
  4. Step 4: Simplify right side
    253,854.76x = 93,850,188,688.00
  5. Step 5: Solve for x
    x = 93,850,188,688.00/253,854.76
  6. Step 6: Final answer
    x = 369,700.33

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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.