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Finding the Fourth Proportional to 145,728.54, 218,600.63 and 45,896.51

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Solution

The fourth proportional to 145,728.54, 218,600.63 and 45,896.51 is: 68,847.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,728.54 : 218,600.63 = 45,896.51 : x
  2. Step 2: Convert to fraction form
    145,728.54/218,600.63 = 45,896.51/x
  3. Step 3: Cross multiply
    145,728.54x = 218,600.63 × 45,896.51
  4. Step 4: Simplify right side
    145,728.54x = 10,033,004,678.32
  5. Step 5: Solve for x
    x = 10,033,004,678.32/145,728.54
  6. Step 6: Final answer
    x = 68,847.22

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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.