Home / 309,619.67-464,409.86-109,913.76

Finding the Fourth Proportional to 309,619.67, 464,409.86 and 109,913.76

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Solution

The fourth proportional to 309,619.67, 464,409.86 and 109,913.76 is: 164,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,619.67 : 464,409.86 = 109,913.76 : x
  2. Step 2: Convert to fraction form
    309,619.67/464,409.86 = 109,913.76/x
  3. Step 3: Cross multiply
    309,619.67x = 464,409.86 × 109,913.76
  4. Step 4: Simplify right side
    309,619.67x = 51,045,033,344.10
  5. Step 5: Solve for x
    x = 51,045,033,344.10/309,619.67
  6. Step 6: Final answer
    x = 164,863.67

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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.