Home / 289,885.22-434,823.76-100,483.46

Finding the Fourth Proportional to 289,885.22, 434,823.76 and 100,483.46

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Solution

The fourth proportional to 289,885.22, 434,823.76 and 100,483.46 is: 150,723.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,885.22 : 434,823.76 = 100,483.46 : x
  2. Step 2: Convert to fraction form
    289,885.22/434,823.76 = 100,483.46/x
  3. Step 3: Cross multiply
    289,885.22x = 434,823.76 × 100,483.46
  4. Step 4: Simplify right side
    289,885.22x = 43,692,595,895.01
  5. Step 5: Solve for x
    x = 43,692,595,895.01/289,885.22
  6. Step 6: Final answer
    x = 150,723.78

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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.