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Finding the Fourth Proportional to 395,825.40, 592,620.30 and 308,102.40

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Solution

The fourth proportional to 395,825.40, 592,620.30 and 308,102.40 is: 461,283.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,825.40 : 592,620.30 = 308,102.40 : x
  2. Step 2: Convert to fraction form
    395,825.40/592,620.30 = 308,102.40/x
  3. Step 3: Cross multiply
    395,825.40x = 592,620.30 × 308,102.40
  4. Step 4: Simplify right side
    395,825.40x = 182,587,736,718.72
  5. Step 5: Solve for x
    x = 182,587,736,718.72/395,825.40
  6. Step 6: Final answer
    x = 461,283.53

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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.