Home / 245,056.84-338,251.78-143,109.80

Finding the Fourth Proportional to 245,056.84, 338,251.78 and 143,109.80

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Solution

The fourth proportional to 245,056.84, 338,251.78 and 143,109.80 is: 197,534.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,056.84 : 338,251.78 = 143,109.80 : x
  2. Step 2: Convert to fraction form
    245,056.84/338,251.78 = 143,109.80/x
  3. Step 3: Cross multiply
    245,056.84x = 338,251.78 × 143,109.80
  4. Step 4: Simplify right side
    245,056.84x = 48,407,144,585.44
  5. Step 5: Solve for x
    x = 48,407,144,585.44/245,056.84
  6. Step 6: Final answer
    x = 197,534.35

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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.