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Finding the Fourth Proportional to 247,779.47, 341,906.66 and 145,782.50

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Solution

The fourth proportional to 247,779.47, 341,906.66 and 145,782.50 is: 201,162.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,779.47 : 341,906.66 = 145,782.50 : x
  2. Step 2: Convert to fraction form
    247,779.47/341,906.66 = 145,782.50/x
  3. Step 3: Cross multiply
    247,779.47x = 341,906.66 × 145,782.50
  4. Step 4: Simplify right side
    247,779.47x = 49,844,005,223.00
  5. Step 5: Solve for x
    x = 49,844,005,223.00/247,779.47
  6. Step 6: Final answer
    x = 201,162.78

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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.