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Finding the Fourth Proportional to 228,090.66, 342,150.06 and 87,849.42

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Solution

The fourth proportional to 228,090.66, 342,150.06 and 87,849.42 is: 131,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,090.66 : 342,150.06 = 87,849.42 : x
  2. Step 2: Convert to fraction form
    228,090.66/342,150.06 = 87,849.42/x
  3. Step 3: Cross multiply
    228,090.66x = 342,150.06 × 87,849.42
  4. Step 4: Simplify right side
    228,090.66x = 30,057,684,323.97
  5. Step 5: Solve for x
    x = 30,057,684,323.97/228,090.66
  6. Step 6: Final answer
    x = 131,779.55

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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.