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Finding the Fourth Proportional to 245,465.96, 368,203.50 and 76,982.54

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Solution

The fourth proportional to 245,465.96, 368,203.50 and 76,982.54 is: 115,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,465.96 : 368,203.50 = 76,982.54 : x
  2. Step 2: Convert to fraction form
    245,465.96/368,203.50 = 76,982.54/x
  3. Step 3: Cross multiply
    245,465.96x = 368,203.50 × 76,982.54
  4. Step 4: Simplify right side
    245,465.96x = 28,345,240,666.89
  5. Step 5: Solve for x
    x = 28,345,240,666.89/245,465.96
  6. Step 6: Final answer
    x = 115,475.24

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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.