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Finding the Fourth Proportional to 370,506.62, 511,292.45 and 209,358.20

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Solution

The fourth proportional to 370,506.62, 511,292.45 and 209,358.20 is: 288,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,506.62 : 511,292.45 = 209,358.20 : x
  2. Step 2: Convert to fraction form
    370,506.62/511,292.45 = 209,358.20/x
  3. Step 3: Cross multiply
    370,506.62x = 511,292.45 × 209,358.20
  4. Step 4: Simplify right side
    370,506.62x = 107,043,267,005.59
  5. Step 5: Solve for x
    x = 107,043,267,005.59/370,506.62
  6. Step 6: Final answer
    x = 288,910.54

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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.