Home / 289,216.40-433,824.60-187,739.60

Finding the Fourth Proportional to 289,216.40, 433,824.60 and 187,739.60

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Solution

The fourth proportional to 289,216.40, 433,824.60 and 187,739.60 is: 281,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,216.40 : 433,824.60 = 187,739.60 : x
  2. Step 2: Convert to fraction form
    289,216.40/433,824.60 = 187,739.60/x
  3. Step 3: Cross multiply
    289,216.40x = 433,824.60 × 187,739.60
  4. Step 4: Simplify right side
    289,216.40x = 81,446,056,874.16
  5. Step 5: Solve for x
    x = 81,446,056,874.16/289,216.40
  6. Step 6: Final answer
    x = 281,609.40

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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.