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Finding the Fourth Proportional to 370,556.32, 511,369.50 and 200,790.76

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Solution

The fourth proportional to 370,556.32, 511,369.50 and 200,790.76 is: 277,092.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,556.32 : 511,369.50 = 200,790.76 : x
  2. Step 2: Convert to fraction form
    370,556.32/511,369.50 = 200,790.76/x
  3. Step 3: Cross multiply
    370,556.32x = 511,369.50 × 200,790.76
  4. Step 4: Simplify right side
    370,556.32x = 102,678,270,545.82
  5. Step 5: Solve for x
    x = 102,678,270,545.82/370,556.32
  6. Step 6: Final answer
    x = 277,092.21

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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.