Home / 289,219.40-433,829.10-187,742.60

Finding the Fourth Proportional to 289,219.40, 433,829.10 and 187,742.60

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Solution

The fourth proportional to 289,219.40, 433,829.10 and 187,742.60 is: 281,613.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,219.40 : 433,829.10 = 187,742.60 : x
  2. Step 2: Convert to fraction form
    289,219.40/433,829.10 = 187,742.60/x
  3. Step 3: Cross multiply
    289,219.40x = 433,829.10 × 187,742.60
  4. Step 4: Simplify right side
    289,219.40x = 81,448,203,189.66
  5. Step 5: Solve for x
    x = 81,448,203,189.66/289,219.40
  6. Step 6: Final answer
    x = 281,613.90

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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.