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Finding the Fourth Proportional to 226,897.80, 312,701.88 and 212,499.83

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Solution

The fourth proportional to 226,897.80, 312,701.88 and 212,499.83 is: 292,859.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,897.80 : 312,701.88 = 212,499.83 : x
  2. Step 2: Convert to fraction form
    226,897.80/312,701.88 = 212,499.83/x
  3. Step 3: Cross multiply
    226,897.80x = 312,701.88 × 212,499.83
  4. Step 4: Simplify right side
    226,897.80x = 66,449,093,714.67
  5. Step 5: Solve for x
    x = 66,449,093,714.67/226,897.80
  6. Step 6: Final answer
    x = 292,859.14

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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.