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Finding the Fourth Proportional to 218,240.42, 301,168.88 and 122,747.12

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Solution

The fourth proportional to 218,240.42, 301,168.88 and 122,747.12 is: 169,389.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,240.42 : 301,168.88 = 122,747.12 : x
  2. Step 2: Convert to fraction form
    218,240.42/301,168.88 = 122,747.12/x
  3. Step 3: Cross multiply
    218,240.42x = 301,168.88 × 122,747.12
  4. Step 4: Simplify right side
    218,240.42x = 36,967,612,653.63
  5. Step 5: Solve for x
    x = 36,967,612,653.63/218,240.42
  6. Step 6: Final answer
    x = 169,389.39

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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.