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Finding the Fourth Proportional to 264,740.40, 397,110.60 and 219,639.60

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Solution

The fourth proportional to 264,740.40, 397,110.60 and 219,639.60 is: 329,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,740.40 : 397,110.60 = 219,639.60 : x
  2. Step 2: Convert to fraction form
    264,740.40/397,110.60 = 219,639.60/x
  3. Step 3: Cross multiply
    264,740.40x = 397,110.60 × 219,639.60
  4. Step 4: Simplify right side
    264,740.40x = 87,221,213,339.76
  5. Step 5: Solve for x
    x = 87,221,213,339.76/264,740.40
  6. Step 6: Final answer
    x = 329,459.40

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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.