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Finding the Fourth Proportional to 380,846.98, 525,329.84 and 245,057.36

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Solution

The fourth proportional to 380,846.98, 525,329.84 and 245,057.36 is: 338,025.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,846.98 : 525,329.84 = 245,057.36 : x
  2. Step 2: Convert to fraction form
    380,846.98/525,329.84 = 245,057.36/x
  3. Step 3: Cross multiply
    380,846.98x = 525,329.84 × 245,057.36
  4. Step 4: Simplify right side
    380,846.98x = 128,735,942,494.34
  5. Step 5: Solve for x
    x = 128,735,942,494.34/380,846.98
  6. Step 6: Final answer
    x = 338,025.38

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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.