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Finding the Fourth Proportional to 208,191.24, 287,469.54 and 192,269.88

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Solution

The fourth proportional to 208,191.24, 287,469.54 and 192,269.88 is: 265,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,191.24 : 287,469.54 = 192,269.88 : x
  2. Step 2: Convert to fraction form
    208,191.24/287,469.54 = 192,269.88/x
  3. Step 3: Cross multiply
    208,191.24x = 287,469.54 × 192,269.88
  4. Step 4: Simplify right side
    208,191.24x = 55,271,733,959.46
  5. Step 5: Solve for x
    x = 55,271,733,959.46/208,191.24
  6. Step 6: Final answer
    x = 265,485.40

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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.