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Finding the Fourth Proportional to 358,688.45, 494,984.01 and 197,558.49

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Solution

The fourth proportional to 358,688.45, 494,984.01 and 197,558.49 is: 272,627.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,688.45 : 494,984.01 = 197,558.49 : x
  2. Step 2: Convert to fraction form
    358,688.45/494,984.01 = 197,558.49/x
  3. Step 3: Cross multiply
    358,688.45x = 494,984.01 × 197,558.49
  4. Step 4: Simplify right side
    358,688.45x = 97,788,296,186.78
  5. Step 5: Solve for x
    x = 97,788,296,186.78/358,688.45
  6. Step 6: Final answer
    x = 272,627.39

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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.