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Finding the Fourth Proportional to 378,069.80, 567,104.70 and 349,201.40

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Solution

The fourth proportional to 378,069.80, 567,104.70 and 349,201.40 is: 523,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,069.80 : 567,104.70 = 349,201.40 : x
  2. Step 2: Convert to fraction form
    378,069.80/567,104.70 = 349,201.40/x
  3. Step 3: Cross multiply
    378,069.80x = 567,104.70 × 349,201.40
  4. Step 4: Simplify right side
    378,069.80x = 198,033,755,186.58
  5. Step 5: Solve for x
    x = 198,033,755,186.58/378,069.80
  6. Step 6: Final answer
    x = 523,802.10

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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.