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Finding the Fourth Proportional to 286,373.81, 395,204.06 and 159,057.61

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Solution

The fourth proportional to 286,373.81, 395,204.06 and 159,057.61 is: 219,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,373.81 : 395,204.06 = 159,057.61 : x
  2. Step 2: Convert to fraction form
    286,373.81/395,204.06 = 159,057.61/x
  3. Step 3: Cross multiply
    286,373.81x = 395,204.06 × 159,057.61
  4. Step 4: Simplify right side
    286,373.81x = 62,860,212,655.53
  5. Step 5: Solve for x
    x = 62,860,212,655.53/286,373.81
  6. Step 6: Final answer
    x = 219,504.05

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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.