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Finding the Fourth Proportional to 281,583.75, 388,585.59 and 168,406.50

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Solution

The fourth proportional to 281,583.75, 388,585.59 and 168,406.50 is: 232,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,583.75 : 388,585.59 = 168,406.50 : x
  2. Step 2: Convert to fraction form
    281,583.75/388,585.59 = 168,406.50/x
  3. Step 3: Cross multiply
    281,583.75x = 388,585.59 × 168,406.50
  4. Step 4: Simplify right side
    281,583.75x = 65,440,339,162.34
  5. Step 5: Solve for x
    x = 65,440,339,162.34/281,583.75
  6. Step 6: Final answer
    x = 232,400.98

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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.