Home / 370,720.55-511,591.86-209,575.37

Finding the Fourth Proportional to 370,720.55, 511,591.86 and 209,575.37

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Solution

The fourth proportional to 370,720.55, 511,591.86 and 209,575.37 is: 289,212.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,720.55 : 511,591.86 = 209,575.37 : x
  2. Step 2: Convert to fraction form
    370,720.55/511,591.86 = 209,575.37/x
  3. Step 3: Cross multiply
    370,720.55x = 511,591.86 × 209,575.37
  4. Step 4: Simplify right side
    370,720.55x = 107,217,050,790.53
  5. Step 5: Solve for x
    x = 107,217,050,790.53/370,720.55
  6. Step 6: Final answer
    x = 289,212.59

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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.