Home / 208,723.08-312,950.34-137,562.84

Finding the Fourth Proportional to 208,723.08, 312,950.34 and 137,562.84

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Solution

The fourth proportional to 208,723.08, 312,950.34 and 137,562.84 is: 206,255.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,723.08 : 312,950.34 = 137,562.84 : x
  2. Step 2: Convert to fraction form
    208,723.08/312,950.34 = 137,562.84/x
  3. Step 3: Cross multiply
    208,723.08x = 312,950.34 × 137,562.84
  4. Step 4: Simplify right side
    208,723.08x = 43,050,337,549.37
  5. Step 5: Solve for x
    x = 43,050,337,549.37/208,723.08
  6. Step 6: Final answer
    x = 206,255.76

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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.