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Finding the Fourth Proportional to 330,239.73, 455,742.10 and 185,051.64

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Solution

The fourth proportional to 330,239.73, 455,742.10 and 185,051.64 is: 255,377.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,239.73 : 455,742.10 = 185,051.64 : x
  2. Step 2: Convert to fraction form
    330,239.73/455,742.10 = 185,051.64/x
  3. Step 3: Cross multiply
    330,239.73x = 455,742.10 × 185,051.64
  4. Step 4: Simplify right side
    330,239.73x = 84,335,821,357.93
  5. Step 5: Solve for x
    x = 84,335,821,357.93/330,239.73
  6. Step 6: Final answer
    x = 255,377.57

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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.