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Finding the Fourth Proportional to 348,310.80, 522,077.40 and 198,622.80

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Solution

The fourth proportional to 348,310.80, 522,077.40 and 198,622.80 is: 297,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,310.80 : 522,077.40 = 198,622.80 : x
  2. Step 2: Convert to fraction form
    348,310.80/522,077.40 = 198,622.80/x
  3. Step 3: Cross multiply
    348,310.80x = 522,077.40 × 198,622.80
  4. Step 4: Simplify right side
    348,310.80x = 103,696,475,004.72
  5. Step 5: Solve for x
    x = 103,696,475,004.72/348,310.80
  6. Step 6: Final answer
    x = 297,712.49

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1.5x scale

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.