Home / 389,834.88-537,971.98-210,986.88

Finding the Fourth Proportional to 389,834.88, 537,971.98 and 210,986.88

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Solution

The fourth proportional to 389,834.88, 537,971.98 and 210,986.88 is: 291,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,834.88 : 537,971.98 = 210,986.88 : x
  2. Step 2: Convert to fraction form
    389,834.88/537,971.98 = 210,986.88/x
  3. Step 3: Cross multiply
    389,834.88x = 537,971.98 × 210,986.88
  4. Step 4: Simplify right side
    389,834.88x = 113,505,029,587.62
  5. Step 5: Solve for x
    x = 113,505,029,587.62/389,834.88
  6. Step 6: Final answer
    x = 291,161.81

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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.