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Finding the Fourth Proportional to 358,989.76, 495,383.61 and 197,835.81

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Solution

The fourth proportional to 358,989.76, 495,383.61 and 197,835.81 is: 273,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,989.76 : 495,383.61 = 197,835.81 : x
  2. Step 2: Convert to fraction form
    358,989.76/495,383.61 = 197,835.81/x
  3. Step 3: Cross multiply
    358,989.76x = 495,383.61 × 197,835.81
  4. Step 4: Simplify right side
    358,989.76x = 98,004,617,745.07
  5. Step 5: Solve for x
    x = 98,004,617,745.07/358,989.76
  6. Step 6: Final answer
    x = 273,001.15

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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.