Home / 217,219.40-325,829.10-209,961.80

Finding the Fourth Proportional to 217,219.40, 325,829.10 and 209,961.80

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Solution

The fourth proportional to 217,219.40, 325,829.10 and 209,961.80 is: 314,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,219.40 : 325,829.10 = 209,961.80 : x
  2. Step 2: Convert to fraction form
    217,219.40/325,829.10 = 209,961.80/x
  3. Step 3: Cross multiply
    217,219.40x = 325,829.10 × 209,961.80
  4. Step 4: Simplify right side
    217,219.40x = 68,411,664,328.38
  5. Step 5: Solve for x
    x = 68,411,664,328.38/217,219.40
  6. Step 6: Final answer
    x = 314,942.70

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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.