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Finding the Fourth Proportional to 286,042.94, 429,050.47 and 106,163.38

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Solution

The fourth proportional to 286,042.94, 429,050.47 and 106,163.38 is: 159,239.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,042.94 : 429,050.47 = 106,163.38 : x
  2. Step 2: Convert to fraction form
    286,042.94/429,050.47 = 106,163.38/x
  3. Step 3: Cross multiply
    286,042.94x = 429,050.47 × 106,163.38
  4. Step 4: Simplify right side
    286,042.94x = 45,549,449,762.45
  5. Step 5: Solve for x
    x = 45,549,449,762.45/286,042.94
  6. Step 6: Final answer
    x = 159,239.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.