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Finding the Fourth Proportional to 393,258.65, 589,901.04 and 108,952.07

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Solution

The fourth proportional to 393,258.65, 589,901.04 and 108,952.07 is: 163,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,258.65 : 589,901.04 = 108,952.07 : x
  2. Step 2: Convert to fraction form
    393,258.65/589,901.04 = 108,952.07/x
  3. Step 3: Cross multiply
    393,258.65x = 589,901.04 × 108,952.07
  4. Step 4: Simplify right side
    393,258.65x = 64,270,936,453.65
  5. Step 5: Solve for x
    x = 64,270,936,453.65/393,258.65
  6. Step 6: Final answer
    x = 163,431.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.