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Finding the Fourth Proportional to 348,346.38, 480,711.78 and 195,384.90

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Solution

The fourth proportional to 348,346.38, 480,711.78 and 195,384.90 is: 269,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,346.38 : 480,711.78 = 195,384.90 : x
  2. Step 2: Convert to fraction form
    348,346.38/480,711.78 = 195,384.90/x
  3. Step 3: Cross multiply
    348,346.38x = 480,711.78 × 195,384.90
  4. Step 4: Simplify right side
    348,346.38x = 93,923,823,064.12
  5. Step 5: Solve for x
    x = 93,923,823,064.12/348,346.38
  6. Step 6: Final answer
    x = 269,627.67

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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.