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Finding the Fourth Proportional to 358,425.70, 494,623.55 and 197,277.28

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Solution

The fourth proportional to 358,425.70, 494,623.55 and 197,277.28 is: 272,240.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,425.70 : 494,623.55 = 197,277.28 : x
  2. Step 2: Convert to fraction form
    358,425.70/494,623.55 = 197,277.28/x
  3. Step 3: Cross multiply
    358,425.70x = 494,623.55 × 197,277.28
  4. Step 4: Simplify right side
    358,425.70x = 97,577,988,567.94
  5. Step 5: Solve for x
    x = 97,577,988,567.94/358,425.70
  6. Step 6: Final answer
    x = 272,240.49

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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.