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Finding the Fourth Proportional to 382,673.96, 528,090.06 and 212,908.04

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Solution

The fourth proportional to 382,673.96, 528,090.06 and 212,908.04 is: 293,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,673.96 : 528,090.06 = 212,908.04 : x
  2. Step 2: Convert to fraction form
    382,673.96/528,090.06 = 212,908.04/x
  3. Step 3: Cross multiply
    382,673.96x = 528,090.06 × 212,908.04
  4. Step 4: Simplify right side
    382,673.96x = 112,434,619,618.08
  5. Step 5: Solve for x
    x = 112,434,619,618.08/382,673.96
  6. Step 6: Final answer
    x = 293,813.09

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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.