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Finding the Fourth Proportional to 380,868.94, 525,633.15 and 245,226.94

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Solution

The fourth proportional to 380,868.94, 525,633.15 and 245,226.94 is: 338,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,868.94 : 525,633.15 = 245,226.94 : x
  2. Step 2: Convert to fraction form
    380,868.94/525,633.15 = 245,226.94/x
  3. Step 3: Cross multiply
    380,868.94x = 525,633.15 × 245,226.94
  4. Step 4: Simplify right side
    380,868.94x = 128,899,410,119.86
  5. Step 5: Solve for x
    x = 128,899,410,119.86/380,868.94
  6. Step 6: Final answer
    x = 338,435.08

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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.