Home / 355,288.90-490,292.74-194,140.23

Finding the Fourth Proportional to 355,288.90, 490,292.74 and 194,140.23

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Solution

The fourth proportional to 355,288.90, 490,292.74 and 194,140.23 is: 267,910.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,288.90 : 490,292.74 = 194,140.23 : x
  2. Step 2: Convert to fraction form
    355,288.90/490,292.74 = 194,140.23/x
  3. Step 3: Cross multiply
    355,288.90x = 490,292.74 × 194,140.23
  4. Step 4: Simplify right side
    355,288.90x = 95,185,546,051.31
  5. Step 5: Solve for x
    x = 95,185,546,051.31/355,288.90
  6. Step 6: Final answer
    x = 267,910.27

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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.