Home / 389,849.64-537,992.42-211,001.64

Finding the Fourth Proportional to 389,849.64, 537,992.42 and 211,001.64

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Solution

The fourth proportional to 389,849.64, 537,992.42 and 211,001.64 is: 291,182.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,849.64 : 537,992.42 = 211,001.64 : x
  2. Step 2: Convert to fraction form
    389,849.64/537,992.42 = 211,001.64/x
  3. Step 3: Cross multiply
    389,849.64x = 537,992.42 × 211,001.64
  4. Step 4: Simplify right side
    389,849.64x = 113,517,282,927.57
  5. Step 5: Solve for x
    x = 113,517,282,927.57/389,849.64
  6. Step 6: Final answer
    x = 291,182.22

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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.