Home / 208,583.40-313,020.90-133,885.20

Finding the Fourth Proportional to 208,583.40, 313,020.90 and 133,885.20

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Solution

The fourth proportional to 208,583.40, 313,020.90 and 133,885.20 is: 200,921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,583.40 : 313,020.90 = 133,885.20 : x
  2. Step 2: Convert to fraction form
    208,583.40/313,020.90 = 133,885.20/x
  3. Step 3: Cross multiply
    208,583.40x = 313,020.90 × 133,885.20
  4. Step 4: Simplify right side
    208,583.40x = 41,908,865,800.68
  5. Step 5: Solve for x
    x = 41,908,865,800.68/208,583.40
  6. Step 6: Final answer
    x = 200,921.39

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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.