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Finding the Fourth Proportional to 217,883.76, 300,712.32 and 133,049.76

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Solution

The fourth proportional to 217,883.76, 300,712.32 and 133,049.76 is: 183,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,883.76 : 300,712.32 = 133,049.76 : x
  2. Step 2: Convert to fraction form
    217,883.76/300,712.32 = 133,049.76/x
  3. Step 3: Cross multiply
    217,883.76x = 300,712.32 × 133,049.76
  4. Step 4: Simplify right side
    217,883.76x = 40,009,702,005.04
  5. Step 5: Solve for x
    x = 40,009,702,005.04/217,883.76
  6. Step 6: Final answer
    x = 183,628.66

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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.