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Finding the Fourth Proportional to 217,280.20, 325,920.30 and 201,533.80

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Solution

The fourth proportional to 217,280.20, 325,920.30 and 201,533.80 is: 302,300.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,280.20 : 325,920.30 = 201,533.80 : x
  2. Step 2: Convert to fraction form
    217,280.20/325,920.30 = 201,533.80/x
  3. Step 3: Cross multiply
    217,280.20x = 325,920.30 × 201,533.80
  4. Step 4: Simplify right side
    217,280.20x = 65,683,956,556.14
  5. Step 5: Solve for x
    x = 65,683,956,556.14/217,280.20
  6. Step 6: Final answer
    x = 302,300.70

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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.