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Finding the Fourth Proportional to 253,660.48, 350,054.40 and 140,485.12

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Solution

The fourth proportional to 253,660.48, 350,054.40 and 140,485.12 is: 193,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,660.48 : 350,054.40 = 140,485.12 : x
  2. Step 2: Convert to fraction form
    253,660.48/350,054.40 = 140,485.12/x
  3. Step 3: Cross multiply
    253,660.48x = 350,054.40 × 140,485.12
  4. Step 4: Simplify right side
    253,660.48x = 49,177,434,390.53
  5. Step 5: Solve for x
    x = 49,177,434,390.53/253,660.48
  6. Step 6: Final answer
    x = 193,871.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.