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Finding the Fourth Proportional to 145,046.70, 217,571.54 and 43,845.59

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Solution

The fourth proportional to 145,046.70, 217,571.54 and 43,845.59 is: 65,768.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,046.70 : 217,571.54 = 43,845.59 : x
  2. Step 2: Convert to fraction form
    145,046.70/217,571.54 = 43,845.59/x
  3. Step 3: Cross multiply
    145,046.70x = 217,571.54 × 43,845.59
  4. Step 4: Simplify right side
    145,046.70x = 9,539,552,538.51
  5. Step 5: Solve for x
    x = 9,539,552,538.51/145,046.70
  6. Step 6: Final answer
    x = 65,768.84

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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.