Home / 342,032.85-471,890.25-221,326.85

Finding the Fourth Proportional to 342,032.85, 471,890.25 and 221,326.85

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Solution

The fourth proportional to 342,032.85, 471,890.25 and 221,326.85 is: 305,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,032.85 : 471,890.25 = 221,326.85 : x
  2. Step 2: Convert to fraction form
    342,032.85/471,890.25 = 221,326.85/x
  3. Step 3: Cross multiply
    342,032.85x = 471,890.25 × 221,326.85
  4. Step 4: Simplify right side
    342,032.85x = 104,441,980,218.76
  5. Step 5: Solve for x
    x = 104,441,980,218.76/342,032.85
  6. Step 6: Final answer
    x = 305,356.58

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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.