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Finding the Fourth Proportional to 354,321.81, 488,945.57 and 201,339.54

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Solution

The fourth proportional to 354,321.81, 488,945.57 and 201,339.54 is: 277,838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,321.81 : 488,945.57 = 201,339.54 : x
  2. Step 2: Convert to fraction form
    354,321.81/488,945.57 = 201,339.54/x
  3. Step 3: Cross multiply
    354,321.81x = 488,945.57 × 201,339.54
  4. Step 4: Simplify right side
    354,321.81x = 98,444,075,142.14
  5. Step 5: Solve for x
    x = 98,444,075,142.14/354,321.81
  6. Step 6: Final answer
    x = 277,838.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.