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Finding the Fourth Proportional to 286,367.40, 395,176.10 and 159,051.20

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Solution

The fourth proportional to 286,367.40, 395,176.10 and 159,051.20 is: 219,484.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,367.40 : 395,176.10 = 159,051.20 : x
  2. Step 2: Convert to fraction form
    286,367.40/395,176.10 = 159,051.20/x
  3. Step 3: Cross multiply
    286,367.40x = 395,176.10 × 159,051.20
  4. Step 4: Simplify right side
    286,367.40x = 62,853,230,145.18
  5. Step 5: Solve for x
    x = 62,853,230,145.18/286,367.40
  6. Step 6: Final answer
    x = 219,484.59

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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.