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Finding the Fourth Proportional to 215,680.40, 323,520.60 and 201,683.60

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Solution

The fourth proportional to 215,680.40, 323,520.60 and 201,683.60 is: 302,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,680.40 : 323,520.60 = 201,683.60 : x
  2. Step 2: Convert to fraction form
    215,680.40/323,520.60 = 201,683.60/x
  3. Step 3: Cross multiply
    215,680.40x = 323,520.60 × 201,683.60
  4. Step 4: Simplify right side
    215,680.40x = 65,248,799,282.16
  5. Step 5: Solve for x
    x = 65,248,799,282.16/215,680.40
  6. Step 6: Final answer
    x = 302,525.40

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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.