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Finding the Fourth Proportional to 380,272.69, 524,740.69 and 227,280.49

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Solution

The fourth proportional to 380,272.69, 524,740.69 and 227,280.49 is: 313,625.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,272.69 : 524,740.69 = 227,280.49 : x
  2. Step 2: Convert to fraction form
    380,272.69/524,740.69 = 227,280.49/x
  3. Step 3: Cross multiply
    380,272.69x = 524,740.69 × 227,280.49
  4. Step 4: Simplify right side
    380,272.69x = 119,263,321,146.14
  5. Step 5: Solve for x
    x = 119,263,321,146.14/380,272.69
  6. Step 6: Final answer
    x = 313,625.79

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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.