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Finding the Fourth Proportional to 308,608.86, 462,437.01 and 208,376.22

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Solution

The fourth proportional to 308,608.86, 462,437.01 and 208,376.22 is: 312,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,608.86 : 462,437.01 = 208,376.22 : x
  2. Step 2: Convert to fraction form
    308,608.86/462,437.01 = 208,376.22/x
  3. Step 3: Cross multiply
    308,608.86x = 462,437.01 × 208,376.22
  4. Step 4: Simplify right side
    308,608.86x = 96,360,876,131.90
  5. Step 5: Solve for x
    x = 96,360,876,131.90/308,608.86
  6. Step 6: Final answer
    x = 312,242.74

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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.