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Finding the Fourth Proportional to 370,536.90, 511,282.80 and 215,522.52

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Solution

The fourth proportional to 370,536.90, 511,282.80 and 215,522.52 is: 297,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,536.90 : 511,282.80 = 215,522.52 : x
  2. Step 2: Convert to fraction form
    370,536.90/511,282.80 = 215,522.52/x
  3. Step 3: Cross multiply
    370,536.90x = 511,282.80 × 215,522.52
  4. Step 4: Simplify right side
    370,536.90x = 110,192,957,488.66
  5. Step 5: Solve for x
    x = 110,192,957,488.66/370,536.90
  6. Step 6: Final answer
    x = 297,387.27

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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.