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Finding the Fourth Proportional to 370,216.78, 510,901.12 and 200,450.90

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Solution

The fourth proportional to 370,216.78, 510,901.12 and 200,450.90 is: 276,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,216.78 : 510,901.12 = 200,450.90 : x
  2. Step 2: Convert to fraction form
    370,216.78/510,901.12 = 200,450.90/x
  3. Step 3: Cross multiply
    370,216.78x = 510,901.12 × 200,450.90
  4. Step 4: Simplify right side
    370,216.78x = 102,410,590,842.82
  5. Step 5: Solve for x
    x = 102,410,590,842.82/370,216.78
  6. Step 6: Final answer
    x = 276,623.31

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1.5x scale

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.