Home / 430,786.68-646,267.52-178,089.76

Finding the Fourth Proportional to 430,786.68, 646,267.52 and 178,089.76

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Solution

The fourth proportional to 430,786.68, 646,267.52 and 178,089.76 is: 267,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,786.68 : 646,267.52 = 178,089.76 : x
  2. Step 2: Convert to fraction form
    430,786.68/646,267.52 = 178,089.76/x
  3. Step 3: Cross multiply
    430,786.68x = 646,267.52 × 178,089.76
  4. Step 4: Simplify right side
    430,786.68x = 115,093,627,532.60
  5. Step 5: Solve for x
    x = 115,093,627,532.60/430,786.68
  6. Step 6: Final answer
    x = 267,170.81

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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.