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Finding the Fourth Proportional to 330,610.62, 456,292.53 and 201,623.93

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Solution

The fourth proportional to 330,610.62, 456,292.53 and 201,623.93 is: 278,271.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,610.62 : 456,292.53 = 201,623.93 : x
  2. Step 2: Convert to fraction form
    330,610.62/456,292.53 = 201,623.93/x
  3. Step 3: Cross multiply
    330,610.62x = 456,292.53 × 201,623.93
  4. Step 4: Simplify right side
    330,610.62x = 91,999,489,838.66
  5. Step 5: Solve for x
    x = 91,999,489,838.66/330,610.62
  6. Step 6: Final answer
    x = 278,271.43

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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.