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Finding the Fourth Proportional to 352,598.40, 529,027.20 and 142,257.60

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Solution

The fourth proportional to 352,598.40, 529,027.20 and 142,257.60 is: 213,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,598.40 : 529,027.20 = 142,257.60 : x
  2. Step 2: Convert to fraction form
    352,598.40/529,027.20 = 142,257.60/x
  3. Step 3: Cross multiply
    352,598.40x = 529,027.20 × 142,257.60
  4. Step 4: Simplify right side
    352,598.40x = 75,258,139,806.72
  5. Step 5: Solve for x
    x = 75,258,139,806.72/352,598.40
  6. Step 6: Final answer
    x = 213,438.69

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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.