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Finding the Fourth Proportional to 217,762.24, 300,511.47 and 122,269.45

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Solution

The fourth proportional to 217,762.24, 300,511.47 and 122,269.45 is: 168,731.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,762.24 : 300,511.47 = 122,269.45 : x
  2. Step 2: Convert to fraction form
    217,762.24/300,511.47 = 122,269.45/x
  3. Step 3: Cross multiply
    217,762.24x = 300,511.47 × 122,269.45
  4. Step 4: Simplify right side
    217,762.24x = 36,743,372,155.59
  5. Step 5: Solve for x
    x = 36,743,372,155.59/217,762.24
  6. Step 6: Final answer
    x = 168,731.60

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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.