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Finding the Fourth Proportional to 370,332.61, 511,069.49 and 209,194.45

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Solution

The fourth proportional to 370,332.61, 511,069.49 and 209,194.45 is: 288,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,332.61 : 511,069.49 = 209,194.45 : x
  2. Step 2: Convert to fraction form
    370,332.61/511,069.49 = 209,194.45/x
  3. Step 3: Cross multiply
    370,332.61x = 511,069.49 × 209,194.45
  4. Step 4: Simplify right side
    370,332.61x = 106,912,900,872.33
  5. Step 5: Solve for x
    x = 106,912,900,872.33/370,332.61
  6. Step 6: Final answer
    x = 288,694.27

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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.