Home / 500,181.63-690,316.35-285,272.43

Finding the Fourth Proportional to 500,181.63, 690,316.35 and 285,272.43

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Solution

The fourth proportional to 500,181.63, 690,316.35 and 285,272.43 is: 393,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,181.63 : 690,316.35 = 285,272.43 : x
  2. Step 2: Convert to fraction form
    500,181.63/690,316.35 = 285,272.43/x
  3. Step 3: Cross multiply
    500,181.63x = 690,316.35 × 285,272.43
  4. Step 4: Simplify right side
    500,181.63x = 196,928,222,633.23
  5. Step 5: Solve for x
    x = 196,928,222,633.23/500,181.63
  6. Step 6: Final answer
    x = 393,713.42

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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.