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Finding the Fourth Proportional to 358,519.70, 494,749.40 and 197,368.58

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Solution

The fourth proportional to 358,519.70, 494,749.40 and 197,368.58 is: 272,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,519.70 : 494,749.40 = 197,368.58 : x
  2. Step 2: Convert to fraction form
    358,519.70/494,749.40 = 197,368.58/x
  3. Step 3: Cross multiply
    358,519.70x = 494,749.40 × 197,368.58
  4. Step 4: Simplify right side
    358,519.70x = 97,647,986,533.85
  5. Step 5: Solve for x
    x = 97,647,986,533.85/358,519.70
  6. Step 6: Final answer
    x = 272,364.35

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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.