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Finding the Fourth Proportional to 330,369.63, 455,871.40 and 194,373.66

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Solution

The fourth proportional to 330,369.63, 455,871.40 and 194,373.66 is: 268,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,369.63 : 455,871.40 = 194,373.66 : x
  2. Step 2: Convert to fraction form
    330,369.63/455,871.40 = 194,373.66/x
  3. Step 3: Cross multiply
    330,369.63x = 455,871.40 × 194,373.66
  4. Step 4: Simplify right side
    330,369.63x = 88,609,392,507.32
  5. Step 5: Solve for x
    x = 88,609,392,507.32/330,369.63
  6. Step 6: Final answer
    x = 268,212.89

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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.