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Finding the Fourth Proportional to 355,759.50, 490,974.75 and 202,801.34

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Solution

The fourth proportional to 355,759.50, 490,974.75 and 202,801.34 is: 279,881.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,759.50 : 490,974.75 = 202,801.34 : x
  2. Step 2: Convert to fraction form
    355,759.50/490,974.75 = 202,801.34/x
  3. Step 3: Cross multiply
    355,759.50x = 490,974.75 × 202,801.34
  4. Step 4: Simplify right side
    355,759.50x = 99,570,334,751.29
  5. Step 5: Solve for x
    x = 99,570,334,751.29/355,759.50
  6. Step 6: Final answer
    x = 279,881.03

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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.