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Finding the Fourth Proportional to 549,816.18, 758,745.81 and 308,100.66

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Solution

The fourth proportional to 549,816.18, 758,745.81 and 308,100.66 is: 425,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,816.18 : 758,745.81 = 308,100.66 : x
  2. Step 2: Convert to fraction form
    549,816.18/758,745.81 = 308,100.66/x
  3. Step 3: Cross multiply
    549,816.18x = 758,745.81 × 308,100.66
  4. Step 4: Simplify right side
    549,816.18x = 233,770,084,833.24
  5. Step 5: Solve for x
    x = 233,770,084,833.24/549,816.18
  6. Step 6: Final answer
    x = 425,178.62

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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.