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Finding the Fourth Proportional to 286,782.32, 395,758.68 and 159,458

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Solution

The fourth proportional to 286,782.32, 395,758.68 and 159,458 is: 220,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,782.32 : 395,758.68 = 159,458 : x
  2. Step 2: Convert to fraction form
    286,782.32/395,758.68 = 159,458/x
  3. Step 3: Cross multiply
    286,782.32x = 395,758.68 × 159,458
  4. Step 4: Simplify right side
    286,782.32x = 63,106,887,595.44
  5. Step 5: Solve for x
    x = 63,106,887,595.44/286,782.32
  6. Step 6: Final answer
    x = 220,051.53

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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.