Home / 353,723.18-488,180.31-208,561.82

Finding the Fourth Proportional to 353,723.18, 488,180.31 and 208,561.82

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Solution

The fourth proportional to 353,723.18, 488,180.31 and 208,561.82 is: 287,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,723.18 : 488,180.31 = 208,561.82 : x
  2. Step 2: Convert to fraction form
    353,723.18/488,180.31 = 208,561.82/x
  3. Step 3: Cross multiply
    353,723.18x = 488,180.31 × 208,561.82
  4. Step 4: Simplify right side
    353,723.18x = 101,815,773,941.76
  5. Step 5: Solve for x
    x = 101,815,773,941.76/353,723.18
  6. Step 6: Final answer
    x = 287,840.27

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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.