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Finding the Fourth Proportional to 606,646.60, 909,969.90 and 163,414.60

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Solution

The fourth proportional to 606,646.60, 909,969.90 and 163,414.60 is: 245,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,646.60 : 909,969.90 = 163,414.60 : x
  2. Step 2: Convert to fraction form
    606,646.60/909,969.90 = 163,414.60/x
  3. Step 3: Cross multiply
    606,646.60x = 909,969.90 × 163,414.60
  4. Step 4: Simplify right side
    606,646.60x = 148,702,367,220.54
  5. Step 5: Solve for x
    x = 148,702,367,220.54/606,646.60
  6. Step 6: Final answer
    x = 245,121.90

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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.