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Finding the Fourth Proportional to 217,130.40, 325,695.60 and 180,266.40

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Solution

The fourth proportional to 217,130.40, 325,695.60 and 180,266.40 is: 270,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,130.40 : 325,695.60 = 180,266.40 : x
  2. Step 2: Convert to fraction form
    217,130.40/325,695.60 = 180,266.40/x
  3. Step 3: Cross multiply
    217,130.40x = 325,695.60 × 180,266.40
  4. Step 4: Simplify right side
    217,130.40x = 58,711,973,307.84
  5. Step 5: Solve for x
    x = 58,711,973,307.84/217,130.40
  6. Step 6: Final answer
    x = 270,399.60

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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.