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Finding the Fourth Proportional to 164,420.40, 246,630.60 and 130,959.30

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Solution

The fourth proportional to 164,420.40, 246,630.60 and 130,959.30 is: 196,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,420.40 : 246,630.60 = 130,959.30 : x
  2. Step 2: Convert to fraction form
    164,420.40/246,630.60 = 130,959.30/x
  3. Step 3: Cross multiply
    164,420.40x = 246,630.60 × 130,959.30
  4. Step 4: Simplify right side
    164,420.40x = 32,298,570,734.58
  5. Step 5: Solve for x
    x = 32,298,570,734.58/164,420.40
  6. Step 6: Final answer
    x = 196,438.95

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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.