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Finding the Fourth Proportional to 247,384.86, 341,391.15 and 139,952.67

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Solution

The fourth proportional to 247,384.86, 341,391.15 and 139,952.67 is: 193,134.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,384.86 : 341,391.15 = 139,952.67 : x
  2. Step 2: Convert to fraction form
    247,384.86/341,391.15 = 139,952.67/x
  3. Step 3: Cross multiply
    247,384.86x = 341,391.15 × 139,952.67
  4. Step 4: Simplify right side
    247,384.86x = 47,778,602,956.87
  5. Step 5: Solve for x
    x = 47,778,602,956.87/247,384.86
  6. Step 6: Final answer
    x = 193,134.71

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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.