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Finding the Fourth Proportional to 358,977.74, 495,392.64 and 197,838.68

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Solution

The fourth proportional to 358,977.74, 495,392.64 and 197,838.68 is: 273,019.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,977.74 : 495,392.64 = 197,838.68 : x
  2. Step 2: Convert to fraction form
    358,977.74/495,392.64 = 197,838.68/x
  3. Step 3: Cross multiply
    358,977.74x = 495,392.64 × 197,838.68
  4. Step 4: Simplify right side
    358,977.74x = 98,007,825,979.32
  5. Step 5: Solve for x
    x = 98,007,825,979.32/358,977.74
  6. Step 6: Final answer
    x = 273,019.23

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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.