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Finding the Fourth Proportional to 164,039.80, 246,059.70 and 140,420.20

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Solution

The fourth proportional to 164,039.80, 246,059.70 and 140,420.20 is: 210,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,039.80 : 246,059.70 = 140,420.20 : x
  2. Step 2: Convert to fraction form
    164,039.80/246,059.70 = 140,420.20/x
  3. Step 3: Cross multiply
    164,039.80x = 246,059.70 × 140,420.20
  4. Step 4: Simplify right side
    164,039.80x = 34,551,752,285.94
  5. Step 5: Solve for x
    x = 34,551,752,285.94/164,039.80
  6. Step 6: Final answer
    x = 210,630.30

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1.5x scale

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.