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Finding the Fourth Proportional to 358,988.60, 495,404.27 and 197,843.65

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Solution

The fourth proportional to 358,988.60, 495,404.27 and 197,843.65 is: 273,024.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,988.60 : 495,404.27 = 197,843.65 : x
  2. Step 2: Convert to fraction form
    358,988.60/495,404.27 = 197,843.65/x
  3. Step 3: Cross multiply
    358,988.60x = 495,404.27 × 197,843.65
  4. Step 4: Simplify right side
    358,988.60x = 98,012,586,960.14
  5. Step 5: Solve for x
    x = 98,012,586,960.14/358,988.60
  6. Step 6: Final answer
    x = 273,024.23

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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.