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Finding the Fourth Proportional to 282,188.49, 388,834.88 and 262,680.45

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Solution

The fourth proportional to 282,188.49, 388,834.88 and 262,680.45 is: 361,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,188.49 : 388,834.88 = 262,680.45 : x
  2. Step 2: Convert to fraction form
    282,188.49/388,834.88 = 262,680.45/x
  3. Step 3: Cross multiply
    282,188.49x = 388,834.88 × 262,680.45
  4. Step 4: Simplify right side
    282,188.49x = 102,139,319,940.69
  5. Step 5: Solve for x
    x = 102,139,319,940.69/282,188.49
  6. Step 6: Final answer
    x = 361,954.24

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1.5x scale

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.