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Finding the Fourth Proportional to 358,991.76, 495,386.37 and 197,837.81

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Solution

The fourth proportional to 358,991.76, 495,386.37 and 197,837.81 is: 273,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,991.76 : 495,386.37 = 197,837.81 : x
  2. Step 2: Convert to fraction form
    358,991.76/495,386.37 = 197,837.81/x
  3. Step 3: Cross multiply
    358,991.76x = 495,386.37 × 197,837.81
  4. Step 4: Simplify right side
    358,991.76x = 98,006,154,544.65
  5. Step 5: Solve for x
    x = 98,006,154,544.65/358,991.76
  6. Step 6: Final answer
    x = 273,003.91

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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.