Home / 215,857.20-323,688.60-97,467.60

Finding the Fourth Proportional to 215,857.20, 323,688.60 and 97,467.60

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Solution

The fourth proportional to 215,857.20, 323,688.60 and 97,467.60 is: 146,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,857.20 : 323,688.60 = 97,467.60 : x
  2. Step 2: Convert to fraction form
    215,857.20/323,688.60 = 97,467.60/x
  3. Step 3: Cross multiply
    215,857.20x = 323,688.60 × 97,467.60
  4. Step 4: Simplify right side
    215,857.20x = 31,549,150,989.36
  5. Step 5: Solve for x
    x = 31,549,150,989.36/215,857.20
  6. Step 6: Final answer
    x = 146,157.51

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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.