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Finding the Fourth Proportional to 212,392, 292,890.86 and 193,958.02

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Solution

The fourth proportional to 212,392, 292,890.86 and 193,958.02 is: 267,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,392 : 292,890.86 = 193,958.02 : x
  2. Step 2: Convert to fraction form
    212,392/292,890.86 = 193,958.02/x
  3. Step 3: Cross multiply
    212,392x = 292,890.86 × 193,958.02
  4. Step 4: Simplify right side
    212,392x = 56,808,531,281.70
  5. Step 5: Solve for x
    x = 56,808,531,281.70/212,392
  6. Step 6: Final answer
    x = 267,470.20

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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.