Home / 355,451.60-490,514.46-194,307.36

Finding the Fourth Proportional to 355,451.60, 490,514.46 and 194,307.36

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Solution

The fourth proportional to 355,451.60, 490,514.46 and 194,307.36 is: 268,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,451.60 : 490,514.46 = 194,307.36 : x
  2. Step 2: Convert to fraction form
    355,451.60/490,514.46 = 194,307.36/x
  3. Step 3: Cross multiply
    355,451.60x = 490,514.46 × 194,307.36
  4. Step 4: Simplify right side
    355,451.60x = 95,310,569,764.43
  5. Step 5: Solve for x
    x = 95,310,569,764.43/355,451.60
  6. Step 6: Final answer
    x = 268,139.37

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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.