Home / 215,626.80-323,440.20-97,431.60

Finding the Fourth Proportional to 215,626.80, 323,440.20 and 97,431.60

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Solution

The fourth proportional to 215,626.80, 323,440.20 and 97,431.60 is: 146,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,626.80 : 323,440.20 = 97,431.60 : x
  2. Step 2: Convert to fraction form
    215,626.80/323,440.20 = 97,431.60/x
  3. Step 3: Cross multiply
    215,626.80x = 323,440.20 × 97,431.60
  4. Step 4: Simplify right side
    215,626.80x = 31,513,296,190.32
  5. Step 5: Solve for x
    x = 31,513,296,190.32/215,626.80
  6. Step 6: Final answer
    x = 146,147.40

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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.