Home / 355,424.64-490,499.19-194,290.62

Finding the Fourth Proportional to 355,424.64, 490,499.19 and 194,290.62

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Solution

The fourth proportional to 355,424.64, 490,499.19 and 194,290.62 is: 268,128.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,424.64 : 490,499.19 = 194,290.62 : x
  2. Step 2: Convert to fraction form
    355,424.64/490,499.19 = 194,290.62/x
  3. Step 3: Cross multiply
    355,424.64x = 490,499.19 × 194,290.62
  4. Step 4: Simplify right side
    355,424.64x = 95,299,391,734.60
  5. Step 5: Solve for x
    x = 95,299,391,734.60/355,424.64
  6. Step 6: Final answer
    x = 268,128.26

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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.