Home / 355,631.16-491,323.60-298,181.40

Finding the Fourth Proportional to 355,631.16, 491,323.60 and 298,181.40

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Solution

The fourth proportional to 355,631.16, 491,323.60 and 298,181.40 is: 411,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,631.16 : 491,323.60 = 298,181.40 : x
  2. Step 2: Convert to fraction form
    355,631.16/491,323.60 = 298,181.40/x
  3. Step 3: Cross multiply
    355,631.16x = 491,323.60 × 298,181.40
  4. Step 4: Simplify right side
    355,631.16x = 146,503,560,195.00
  5. Step 5: Solve for x
    x = 146,503,560,195.00/355,631.16
  6. Step 6: Final answer
    x = 411,953.67

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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.