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Finding the Fourth Proportional to 235,270.98, 352,818.15 and 85,474.26

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Solution

The fourth proportional to 235,270.98, 352,818.15 and 85,474.26 is: 128,179.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,270.98 : 352,818.15 = 85,474.26 : x
  2. Step 2: Convert to fraction form
    235,270.98/352,818.15 = 85,474.26/x
  3. Step 3: Cross multiply
    235,270.98x = 352,818.15 × 85,474.26
  4. Step 4: Simplify right side
    235,270.98x = 30,156,870,285.82
  5. Step 5: Solve for x
    x = 30,156,870,285.82/235,270.98
  6. Step 6: Final answer
    x = 128,179.30

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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.