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Finding the Fourth Proportional to 217,344.40, 325,579.20 and 146,485.60

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Solution

The fourth proportional to 217,344.40, 325,579.20 and 146,485.60 is: 219,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,344.40 : 325,579.20 = 146,485.60 : x
  2. Step 2: Convert to fraction form
    217,344.40/325,579.20 = 146,485.60/x
  3. Step 3: Cross multiply
    217,344.40x = 325,579.20 × 146,485.60
  4. Step 4: Simplify right side
    217,344.40x = 47,692,664,459.52
  5. Step 5: Solve for x
    x = 47,692,664,459.52/217,344.40
  6. Step 6: Final answer
    x = 219,433.60

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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.