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Finding the Fourth Proportional to 216,027.20, 324,429.60 and 156,929.60

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Solution

The fourth proportional to 216,027.20, 324,429.60 and 156,929.60 is: 235,676.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,027.20 : 324,429.60 = 156,929.60 : x
  2. Step 2: Convert to fraction form
    216,027.20/324,429.60 = 156,929.60/x
  3. Step 3: Cross multiply
    216,027.20x = 324,429.60 × 156,929.60
  4. Step 4: Simplify right side
    216,027.20x = 50,912,607,356.16
  5. Step 5: Solve for x
    x = 50,912,607,356.16/216,027.20
  6. Step 6: Final answer
    x = 235,676.84

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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.