Home / 285,127.56-427,219.07-200,474.13

Finding the Fourth Proportional to 285,127.56, 427,219.07 and 200,474.13

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Solution

The fourth proportional to 285,127.56, 427,219.07 and 200,474.13 is: 300,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,127.56 : 427,219.07 = 200,474.13 : x
  2. Step 2: Convert to fraction form
    285,127.56/427,219.07 = 200,474.13/x
  3. Step 3: Cross multiply
    285,127.56x = 427,219.07 × 200,474.13
  4. Step 4: Simplify right side
    285,127.56x = 85,646,371,878.84
  5. Step 5: Solve for x
    x = 85,646,371,878.84/285,127.56
  6. Step 6: Final answer
    x = 300,379.14

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1.5x scale

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.