Home / 281,839.50-388,890.72-186,295.14

Finding the Fourth Proportional to 281,839.50, 388,890.72 and 186,295.14

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Solution

The fourth proportional to 281,839.50, 388,890.72 and 186,295.14 is: 257,055.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,839.50 : 388,890.72 = 186,295.14 : x
  2. Step 2: Convert to fraction form
    281,839.50/388,890.72 = 186,295.14/x
  3. Step 3: Cross multiply
    281,839.50x = 388,890.72 × 186,295.14
  4. Step 4: Simplify right side
    281,839.50x = 72,448,451,127.10
  5. Step 5: Solve for x
    x = 72,448,451,127.10/281,839.50
  6. Step 6: Final answer
    x = 257,055.70

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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.