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Finding the Fourth Proportional to 348,553.60, 522,830.40 and 111,920.20

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Solution

The fourth proportional to 348,553.60, 522,830.40 and 111,920.20 is: 167,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,553.60 : 522,830.40 = 111,920.20 : x
  2. Step 2: Convert to fraction form
    348,553.60/522,830.40 = 111,920.20/x
  3. Step 3: Cross multiply
    348,553.60x = 522,830.40 × 111,920.20
  4. Step 4: Simplify right side
    348,553.60x = 58,515,282,934.08
  5. Step 5: Solve for x
    x = 58,515,282,934.08/348,553.60
  6. Step 6: Final answer
    x = 167,880.30

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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.