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Finding the Fourth Proportional to 370,504.86, 511,290.04 and 209,356.44

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Solution

The fourth proportional to 370,504.86, 511,290.04 and 209,356.44 is: 288,908.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,504.86 : 511,290.04 = 209,356.44 : x
  2. Step 2: Convert to fraction form
    370,504.86/511,290.04 = 209,356.44/x
  3. Step 3: Cross multiply
    370,504.86x = 511,290.04 × 209,356.44
  4. Step 4: Simplify right side
    370,504.86x = 107,041,861,535.08
  5. Step 5: Solve for x
    x = 107,041,861,535.08/370,504.86
  6. Step 6: Final answer
    x = 288,908.12

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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.