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Finding the Fourth Proportional to 348,079.87, 480,346.35 and 195,142.96

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Solution

The fourth proportional to 348,079.87, 480,346.35 and 195,142.96 is: 269,295.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,079.87 : 480,346.35 = 195,142.96 : x
  2. Step 2: Convert to fraction form
    348,079.87/480,346.35 = 195,142.96/x
  3. Step 3: Cross multiply
    348,079.87x = 480,346.35 × 195,142.96
  4. Step 4: Simplify right side
    348,079.87x = 93,736,208,564.20
  5. Step 5: Solve for x
    x = 93,736,208,564.20/348,079.87
  6. Step 6: Final answer
    x = 269,295.11

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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.