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Finding the Fourth Proportional to 355,622.51, 490,610.22 and 233,144.30

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Solution

The fourth proportional to 355,622.51, 490,610.22 and 233,144.30 is: 321,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,622.51 : 490,610.22 = 233,144.30 : x
  2. Step 2: Convert to fraction form
    355,622.51/490,610.22 = 233,144.30/x
  3. Step 3: Cross multiply
    355,622.51x = 490,610.22 × 233,144.30
  4. Step 4: Simplify right side
    355,622.51x = 114,382,976,666.98
  5. Step 5: Solve for x
    x = 114,382,976,666.98/355,622.51
  6. Step 6: Final answer
    x = 321,641.55

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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.