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Finding the Fourth Proportional to 308,300.88, 423,823.26 and 265,121.52

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Solution

The fourth proportional to 308,300.88, 423,823.26 and 265,121.52 is: 364,464.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,300.88 : 423,823.26 = 265,121.52 : x
  2. Step 2: Convert to fraction form
    308,300.88/423,823.26 = 265,121.52/x
  3. Step 3: Cross multiply
    308,300.88x = 423,823.26 × 265,121.52
  4. Step 4: Simplify right side
    308,300.88x = 112,364,666,902.56
  5. Step 5: Solve for x
    x = 112,364,666,902.56/308,300.88
  6. Step 6: Final answer
    x = 364,464.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.