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Finding the Fourth Proportional to 229,317.12, 315,892.80 and 195,216.12

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Solution

The fourth proportional to 229,317.12, 315,892.80 and 195,216.12 is: 268,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,317.12 : 315,892.80 = 195,216.12 : x
  2. Step 2: Convert to fraction form
    229,317.12/315,892.80 = 195,216.12/x
  3. Step 3: Cross multiply
    229,317.12x = 315,892.80 × 195,216.12
  4. Step 4: Simplify right side
    229,317.12x = 61,667,366,751.94
  5. Step 5: Solve for x
    x = 61,667,366,751.94/229,317.12
  6. Step 6: Final answer
    x = 268,917.41

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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.