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Finding the Fourth Proportional to 307,801.92, 424,281.44 and 226,970.56

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Solution

The fourth proportional to 307,801.92, 424,281.44 and 226,970.56 is: 312,861.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,801.92 : 424,281.44 = 226,970.56 : x
  2. Step 2: Convert to fraction form
    307,801.92/424,281.44 = 226,970.56/x
  3. Step 3: Cross multiply
    307,801.92x = 424,281.44 × 226,970.56
  4. Step 4: Simplify right side
    307,801.92x = 96,299,396,034.41
  5. Step 5: Solve for x
    x = 96,299,396,034.41/307,801.92
  6. Step 6: Final answer
    x = 312,861.58

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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.