Home / 285,709.06-428,634.98-201,633.35

Finding the Fourth Proportional to 285,709.06, 428,634.98 and 201,633.35

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Solution

The fourth proportional to 285,709.06, 428,634.98 and 201,633.35 is: 302,500.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,709.06 : 428,634.98 = 201,633.35 : x
  2. Step 2: Convert to fraction form
    285,709.06/428,634.98 = 201,633.35/x
  3. Step 3: Cross multiply
    285,709.06x = 428,634.98 × 201,633.35
  4. Step 4: Simplify right side
    285,709.06x = 86,427,104,549.37
  5. Step 5: Solve for x
    x = 86,427,104,549.37/285,709.06
  6. Step 6: Final answer
    x = 302,500.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.