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Finding the Fourth Proportional to 445,501.65, 668,218.87 and 141,883.54

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Solution

The fourth proportional to 445,501.65, 668,218.87 and 141,883.54 is: 212,814.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,501.65 : 668,218.87 = 141,883.54 : x
  2. Step 2: Convert to fraction form
    445,501.65/668,218.87 = 141,883.54/x
  3. Step 3: Cross multiply
    445,501.65x = 668,218.87 × 141,883.54
  4. Step 4: Simplify right side
    445,501.65x = 94,809,258,770.40
  5. Step 5: Solve for x
    x = 94,809,258,770.40/445,501.65
  6. Step 6: Final answer
    x = 212,814.61

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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.