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Finding the Fourth Proportional to 286,692.62, 395,636.28 and 159,367.10

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Solution

The fourth proportional to 286,692.62, 395,636.28 and 159,367.10 is: 219,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,692.62 : 395,636.28 = 159,367.10 : x
  2. Step 2: Convert to fraction form
    286,692.62/395,636.28 = 159,367.10/x
  3. Step 3: Cross multiply
    286,692.62x = 395,636.28 × 159,367.10
  4. Step 4: Simplify right side
    286,692.62x = 63,051,406,598.39
  5. Step 5: Solve for x
    x = 63,051,406,598.39/286,692.62
  6. Step 6: Final answer
    x = 219,926.86

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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.