Home / 353,922.82-488,414.51-210,681.61

Finding the Fourth Proportional to 353,922.82, 488,414.51 and 210,681.61

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Solution

The fourth proportional to 353,922.82, 488,414.51 and 210,681.61 is: 290,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,922.82 : 488,414.51 = 210,681.61 : x
  2. Step 2: Convert to fraction form
    353,922.82/488,414.51 = 210,681.61/x
  3. Step 3: Cross multiply
    353,922.82x = 488,414.51 × 210,681.61
  4. Step 4: Simplify right side
    353,922.82x = 102,899,953,829.77
  5. Step 5: Solve for x
    x = 102,899,953,829.77/353,922.82
  6. Step 6: Final answer
    x = 290,741.23

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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.