Home / 245,257.84-338,548.31-143,316.45

Finding the Fourth Proportional to 245,257.84, 338,548.31 and 143,316.45

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Solution

The fourth proportional to 245,257.84, 338,548.31 and 143,316.45 is: 197,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,257.84 : 338,548.31 = 143,316.45 : x
  2. Step 2: Convert to fraction form
    245,257.84/338,548.31 = 143,316.45/x
  3. Step 3: Cross multiply
    245,257.84x = 338,548.31 × 143,316.45
  4. Step 4: Simplify right side
    245,257.84x = 48,519,541,942.70
  5. Step 5: Solve for x
    x = 48,519,541,942.70/245,257.84
  6. Step 6: Final answer
    x = 197,830.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.