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Finding the Fourth Proportional to 146,762.20, 220,143.30 and 145,840.60

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Solution

The fourth proportional to 146,762.20, 220,143.30 and 145,840.60 is: 218,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,762.20 : 220,143.30 = 145,840.60 : x
  2. Step 2: Convert to fraction form
    146,762.20/220,143.30 = 145,840.60/x
  3. Step 3: Cross multiply
    146,762.20x = 220,143.30 × 145,840.60
  4. Step 4: Simplify right side
    146,762.20x = 32,105,830,957.98
  5. Step 5: Solve for x
    x = 32,105,830,957.98/146,762.20
  6. Step 6: Final answer
    x = 218,760.90

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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.