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Finding the Fourth Proportional to 281,767.92, 388,898.42 and 259,070.81

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Solution

The fourth proportional to 281,767.92, 388,898.42 and 259,070.81 is: 357,571.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,767.92 : 388,898.42 = 259,070.81 : x
  2. Step 2: Convert to fraction form
    281,767.92/388,898.42 = 259,070.81/x
  3. Step 3: Cross multiply
    281,767.92x = 388,898.42 × 259,070.81
  4. Step 4: Simplify right side
    281,767.92x = 100,752,225,437.27
  5. Step 5: Solve for x
    x = 100,752,225,437.27/281,767.92
  6. Step 6: Final answer
    x = 357,571.67

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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.