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Finding the Fourth Proportional to 180,606.60, 270,811.20 and 143,405.64

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Solution

The fourth proportional to 180,606.60, 270,811.20 and 143,405.64 is: 215,030.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,606.60 : 270,811.20 = 143,405.64 : x
  2. Step 2: Convert to fraction form
    180,606.60/270,811.20 = 143,405.64/x
  3. Step 3: Cross multiply
    180,606.60x = 270,811.20 × 143,405.64
  4. Step 4: Simplify right side
    180,606.60x = 38,835,853,455.17
  5. Step 5: Solve for x
    x = 38,835,853,455.17/180,606.60
  6. Step 6: Final answer
    x = 215,030.09

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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.