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Finding the Fourth Proportional to 382,797.92, 528,238.62 and 221,641.52

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Solution

The fourth proportional to 382,797.92, 528,238.62 and 221,641.52 is: 305,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,797.92 : 528,238.62 = 221,641.52 : x
  2. Step 2: Convert to fraction form
    382,797.92/528,238.62 = 221,641.52/x
  3. Step 3: Cross multiply
    382,797.92x = 528,238.62 × 221,641.52
  4. Step 4: Simplify right side
    382,797.92x = 117,079,610,659.50
  5. Step 5: Solve for x
    x = 117,079,610,659.50/382,797.92
  6. Step 6: Final answer
    x = 305,852.26

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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.