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Finding the Fourth Proportional to 370,320.54, 511,041.87 and 200,555.34

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Solution

The fourth proportional to 370,320.54, 511,041.87 and 200,555.34 is: 276,766.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,320.54 : 511,041.87 = 200,555.34 : x
  2. Step 2: Convert to fraction form
    370,320.54/511,041.87 = 200,555.34/x
  3. Step 3: Cross multiply
    370,320.54x = 511,041.87 × 200,555.34
  4. Step 4: Simplify right side
    370,320.54x = 102,492,175,992.09
  5. Step 5: Solve for x
    x = 102,492,175,992.09/370,320.54
  6. Step 6: Final answer
    x = 276,766.11

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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.