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Finding the Fourth Proportional to 662,978.40, 994,467.60 and 164,342.40

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Solution

The fourth proportional to 662,978.40, 994,467.60 and 164,342.40 is: 246,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,978.40 : 994,467.60 = 164,342.40 : x
  2. Step 2: Convert to fraction form
    662,978.40/994,467.60 = 164,342.40/x
  3. Step 3: Cross multiply
    662,978.40x = 994,467.60 × 164,342.40
  4. Step 4: Simplify right side
    662,978.40x = 163,433,192,106.24
  5. Step 5: Solve for x
    x = 163,433,192,106.24/662,978.40
  6. Step 6: Final answer
    x = 246,513.60

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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.