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Finding the Fourth Proportional to 247,779.52, 341,906.72 and 145,782.54

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Solution

The fourth proportional to 247,779.52, 341,906.72 and 145,782.54 is: 201,162.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,779.52 : 341,906.72 = 145,782.54 : x
  2. Step 2: Convert to fraction form
    247,779.52/341,906.72 = 145,782.54/x
  3. Step 3: Cross multiply
    247,779.52x = 341,906.72 × 145,782.54
  4. Step 4: Simplify right side
    247,779.52x = 49,844,031,731.28
  5. Step 5: Solve for x
    x = 49,844,031,731.28/247,779.52
  6. Step 6: Final answer
    x = 201,162.84

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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.