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Finding the Fourth Proportional to 341,570.60, 512,355.90 and 208,860.20

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Solution

The fourth proportional to 341,570.60, 512,355.90 and 208,860.20 is: 313,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,570.60 : 512,355.90 = 208,860.20 : x
  2. Step 2: Convert to fraction form
    341,570.60/512,355.90 = 208,860.20/x
  3. Step 3: Cross multiply
    341,570.60x = 512,355.90 × 208,860.20
  4. Step 4: Simplify right side
    341,570.60x = 107,010,755,745.18
  5. Step 5: Solve for x
    x = 107,010,755,745.18/341,570.60
  6. Step 6: Final answer
    x = 313,290.30

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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.