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Finding the Fourth Proportional to 208,181.50, 312,280.89 and 60,437.50

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Solution

The fourth proportional to 208,181.50, 312,280.89 and 60,437.50 is: 90,658.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,181.50 : 312,280.89 = 60,437.50 : x
  2. Step 2: Convert to fraction form
    208,181.50/312,280.89 = 60,437.50/x
  3. Step 3: Cross multiply
    208,181.50x = 312,280.89 × 60,437.50
  4. Step 4: Simplify right side
    208,181.50x = 18,873,476,289.38
  5. Step 5: Solve for x
    x = 18,873,476,289.38/208,181.50
  6. Step 6: Final answer
    x = 90,658.76

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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.