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Finding the Fourth Proportional to 511,993.58, 767,556.59 and 212,287.10

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Solution

The fourth proportional to 511,993.58, 767,556.59 and 212,287.10 is: 318,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,993.58 : 767,556.59 = 212,287.10 : x
  2. Step 2: Convert to fraction form
    511,993.58/767,556.59 = 212,287.10/x
  3. Step 3: Cross multiply
    511,993.58x = 767,556.59 × 212,287.10
  4. Step 4: Simplify right side
    511,993.58x = 162,942,357,677.77
  5. Step 5: Solve for x
    x = 162,942,357,677.77/511,993.58
  6. Step 6: Final answer
    x = 318,250.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.