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Finding the Fourth Proportional to 196,987.98, 295,511.12 and 72,319.26

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Solution

The fourth proportional to 196,987.98, 295,511.12 and 72,319.26 is: 108,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,987.98 : 295,511.12 = 72,319.26 : x
  2. Step 2: Convert to fraction form
    196,987.98/295,511.12 = 72,319.26/x
  3. Step 3: Cross multiply
    196,987.98x = 295,511.12 × 72,319.26
  4. Step 4: Simplify right side
    196,987.98x = 21,371,145,520.17
  5. Step 5: Solve for x
    x = 21,371,145,520.17/196,987.98
  6. Step 6: Final answer
    x = 108,489.59

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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.