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Finding the Fourth Proportional to 348,059.80, 521,700.90 and 198,371.80

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Solution

The fourth proportional to 348,059.80, 521,700.90 and 198,371.80 is: 297,336.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,059.80 : 521,700.90 = 198,371.80 : x
  2. Step 2: Convert to fraction form
    348,059.80/521,700.90 = 198,371.80/x
  3. Step 3: Cross multiply
    348,059.80x = 521,700.90 × 198,371.80
  4. Step 4: Simplify right side
    348,059.80x = 103,490,746,594.62
  5. Step 5: Solve for x
    x = 103,490,746,594.62/348,059.80
  6. Step 6: Final answer
    x = 297,336.11

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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.