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Finding the Fourth Proportional to 358,728.40, 495,048.54 and 197,584.03

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Solution

The fourth proportional to 358,728.40, 495,048.54 and 197,584.03 is: 272,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728.40 : 495,048.54 = 197,584.03 : x
  2. Step 2: Convert to fraction form
    358,728.40/495,048.54 = 197,584.03/x
  3. Step 3: Cross multiply
    358,728.40x = 495,048.54 × 197,584.03
  4. Step 4: Simplify right side
    358,728.40x = 97,813,685,578.82
  5. Step 5: Solve for x
    x = 97,813,685,578.82/358,728.40
  6. Step 6: Final answer
    x = 272,667.81

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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.