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Finding the Fourth Proportional to 228,246.30, 342,369.45 and 213,374.70

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Solution

The fourth proportional to 228,246.30, 342,369.45 and 213,374.70 is: 320,062.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,246.30 : 342,369.45 = 213,374.70 : x
  2. Step 2: Convert to fraction form
    228,246.30/342,369.45 = 213,374.70/x
  3. Step 3: Cross multiply
    228,246.30x = 342,369.45 × 213,374.70
  4. Step 4: Simplify right side
    228,246.30x = 73,052,978,682.92
  5. Step 5: Solve for x
    x = 73,052,978,682.92/228,246.30
  6. Step 6: Final answer
    x = 320,062.05

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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.