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Finding the Fourth Proportional to 153,908.37, 230,862.69 and 122,940.45

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Solution

The fourth proportional to 153,908.37, 230,862.69 and 122,940.45 is: 184,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,908.37 : 230,862.69 = 122,940.45 : x
  2. Step 2: Convert to fraction form
    153,908.37/230,862.69 = 122,940.45/x
  3. Step 3: Cross multiply
    153,908.37x = 230,862.69 × 122,940.45
  4. Step 4: Simplify right side
    153,908.37x = 28,382,362,996.81
  5. Step 5: Solve for x
    x = 28,382,362,996.81/153,908.37
  6. Step 6: Final answer
    x = 184,410.78

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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.