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Finding the Fourth Proportional to 212,230.44, 292,677.78 and 139,504.86

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Solution

The fourth proportional to 212,230.44, 292,677.78 and 139,504.86 is: 192,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,230.44 : 292,677.78 = 139,504.86 : x
  2. Step 2: Convert to fraction form
    212,230.44/292,677.78 = 139,504.86/x
  3. Step 3: Cross multiply
    212,230.44x = 292,677.78 × 139,504.86
  4. Step 4: Simplify right side
    212,230.44x = 40,829,972,724.01
  5. Step 5: Solve for x
    x = 40,829,972,724.01/212,230.44
  6. Step 6: Final answer
    x = 192,385.09

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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.