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Finding the Fourth Proportional to 248,401.60, 372,602.40 and 215,596.60

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Solution

The fourth proportional to 248,401.60, 372,602.40 and 215,596.60 is: 323,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,401.60 : 372,602.40 = 215,596.60 : x
  2. Step 2: Convert to fraction form
    248,401.60/372,602.40 = 215,596.60/x
  3. Step 3: Cross multiply
    248,401.60x = 372,602.40 × 215,596.60
  4. Step 4: Simplify right side
    248,401.60x = 80,331,810,591.84
  5. Step 5: Solve for x
    x = 80,331,810,591.84/248,401.60
  6. Step 6: Final answer
    x = 323,394.90

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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.