Home / 511,932.56-767,899.10-212,332.66

Finding the Fourth Proportional to 511,932.56, 767,899.10 and 212,332.66

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Solution

The fourth proportional to 511,932.56, 767,899.10 and 212,332.66 is: 318,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,932.56 : 767,899.10 = 212,332.66 : x
  2. Step 2: Convert to fraction form
    511,932.56/767,899.10 = 212,332.66/x
  3. Step 3: Cross multiply
    511,932.56x = 767,899.10 × 212,332.66
  4. Step 4: Simplify right side
    511,932.56x = 163,050,057,125.69
  5. Step 5: Solve for x
    x = 163,050,057,125.69/511,932.56
  6. Step 6: Final answer
    x = 318,499.10

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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.