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Finding the Fourth Proportional to 146,653.81, 220,004.55 and 45,428.22

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Solution

The fourth proportional to 146,653.81, 220,004.55 and 45,428.22 is: 68,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,653.81 : 220,004.55 = 45,428.22 : x
  2. Step 2: Convert to fraction form
    146,653.81/220,004.55 = 45,428.22/x
  3. Step 3: Cross multiply
    146,653.81x = 220,004.55 × 45,428.22
  4. Step 4: Simplify right side
    146,653.81x = 9,994,415,098.40
  5. Step 5: Solve for x
    x = 9,994,415,098.40/146,653.81
  6. Step 6: Final answer
    x = 68,149.71

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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.