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Finding the Fourth Proportional to 217,585.76, 300,267.54 and 122,092.22

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Solution

The fourth proportional to 217,585.76, 300,267.54 and 122,092.22 is: 168,486.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,585.76 : 300,267.54 = 122,092.22 : x
  2. Step 2: Convert to fraction form
    217,585.76/300,267.54 = 122,092.22/x
  3. Step 3: Cross multiply
    217,585.76x = 300,267.54 × 122,092.22
  4. Step 4: Simplify right side
    217,585.76x = 36,660,331,303.21
  5. Step 5: Solve for x
    x = 36,660,331,303.21/217,585.76
  6. Step 6: Final answer
    x = 168,486.82

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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.