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Finding the Fourth Proportional to 286,393.73, 395,294.76 and 165,604.64

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Solution

The fourth proportional to 286,393.73, 395,294.76 and 165,604.64 is: 228,575.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,393.73 : 395,294.76 = 165,604.64 : x
  2. Step 2: Convert to fraction form
    286,393.73/395,294.76 = 165,604.64/x
  3. Step 3: Cross multiply
    286,393.73x = 395,294.76 × 165,604.64
  4. Step 4: Simplify right side
    286,393.73x = 65,462,644,447.21
  5. Step 5: Solve for x
    x = 65,462,644,447.21/286,393.73
  6. Step 6: Final answer
    x = 228,575.69

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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.