Home / 380,880.53-571,141.74-140,828.58

Finding the Fourth Proportional to 380,880.53, 571,141.74 and 140,828.58

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Solution

The fourth proportional to 380,880.53, 571,141.74 and 140,828.58 is: 211,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,880.53 : 571,141.74 = 140,828.58 : x
  2. Step 2: Convert to fraction form
    380,880.53/571,141.74 = 140,828.58/x
  3. Step 3: Cross multiply
    380,880.53x = 571,141.74 × 140,828.58
  4. Step 4: Simplify right side
    380,880.53x = 80,433,080,222.93
  5. Step 5: Solve for x
    x = 80,433,080,222.93/380,880.53
  6. Step 6: Final answer
    x = 211,176.67

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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.