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Finding the Fourth Proportional to 286,374.81, 395,205.44 and 159,058.61

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Solution

The fourth proportional to 286,374.81, 395,205.44 and 159,058.61 is: 219,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,374.81 : 395,205.44 = 159,058.61 : x
  2. Step 2: Convert to fraction form
    286,374.81/395,205.44 = 159,058.61/x
  3. Step 3: Cross multiply
    286,374.81x = 395,205.44 × 159,058.61
  4. Step 4: Simplify right side
    286,374.81x = 62,860,827,950.84
  5. Step 5: Solve for x
    x = 62,860,827,950.84/286,374.81
  6. Step 6: Final answer
    x = 219,505.44

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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.