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Finding the Fourth Proportional to 224,908.42, 310,381.90 and 122,940.76

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Solution

The fourth proportional to 224,908.42, 310,381.90 and 122,940.76 is: 169,662.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,908.42 : 310,381.90 = 122,940.76 : x
  2. Step 2: Convert to fraction form
    224,908.42/310,381.90 = 122,940.76/x
  3. Step 3: Cross multiply
    224,908.42x = 310,381.90 × 122,940.76
  4. Step 4: Simplify right side
    224,908.42x = 38,158,586,676.24
  5. Step 5: Solve for x
    x = 38,158,586,676.24/224,908.42
  6. Step 6: Final answer
    x = 169,662.78

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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.