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Finding the Fourth Proportional to 353,987.15, 488,500.34 and 192,841.80

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Solution

The fourth proportional to 353,987.15, 488,500.34 and 192,841.80 is: 266,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,987.15 : 488,500.34 = 192,841.80 : x
  2. Step 2: Convert to fraction form
    353,987.15/488,500.34 = 192,841.80/x
  3. Step 3: Cross multiply
    353,987.15x = 488,500.34 × 192,841.80
  4. Step 4: Simplify right side
    353,987.15x = 94,203,283,902.00
  5. Step 5: Solve for x
    x = 94,203,283,902.00/353,987.15
  6. Step 6: Final answer
    x = 266,120.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.