Home / 245,383.28-368,074.24-76,916.40

Finding the Fourth Proportional to 245,383.28, 368,074.24 and 76,916.40

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Solution

The fourth proportional to 245,383.28, 368,074.24 and 76,916.40 is: 115,374.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,383.28 : 368,074.24 = 76,916.40 : x
  2. Step 2: Convert to fraction form
    245,383.28/368,074.24 = 76,916.40/x
  3. Step 3: Cross multiply
    245,383.28x = 368,074.24 × 76,916.40
  4. Step 4: Simplify right side
    245,383.28x = 28,310,945,473.54
  5. Step 5: Solve for x
    x = 28,310,945,473.54/245,383.28
  6. Step 6: Final answer
    x = 115,374.39

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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.