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Finding the Fourth Proportional to 281,868.54, 422,802.81 and 243,804.69

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Solution

The fourth proportional to 281,868.54, 422,802.81 and 243,804.69 is: 365,707.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,868.54 : 422,802.81 = 243,804.69 : x
  2. Step 2: Convert to fraction form
    281,868.54/422,802.81 = 243,804.69/x
  3. Step 3: Cross multiply
    281,868.54x = 422,802.81 × 243,804.69
  4. Step 4: Simplify right side
    281,868.54x = 103,081,308,023.18
  5. Step 5: Solve for x
    x = 103,081,308,023.18/281,868.54
  6. Step 6: Final answer
    x = 365,707.04

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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.