Home / 430,593.84-645,913.44-131,051.52

Finding the Fourth Proportional to 430,593.84, 645,913.44 and 131,051.52

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Solution

The fourth proportional to 430,593.84, 645,913.44 and 131,051.52 is: 196,584.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,593.84 : 645,913.44 = 131,051.52 : x
  2. Step 2: Convert to fraction form
    430,593.84/645,913.44 = 131,051.52/x
  3. Step 3: Cross multiply
    430,593.84x = 645,913.44 × 131,051.52
  4. Step 4: Simplify right side
    430,593.84x = 84,647,938,100.43
  5. Step 5: Solve for x
    x = 84,647,938,100.43/430,593.84
  6. Step 6: Final answer
    x = 196,584.18

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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.