Home / 389,813.04-537,942.06-210,965.04

Finding the Fourth Proportional to 389,813.04, 537,942.06 and 210,965.04

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Solution

The fourth proportional to 389,813.04, 537,942.06 and 210,965.04 is: 291,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,813.04 : 537,942.06 = 210,965.04 : x
  2. Step 2: Convert to fraction form
    389,813.04/537,942.06 = 210,965.04/x
  3. Step 3: Cross multiply
    389,813.04x = 537,942.06 × 210,965.04
  4. Step 4: Simplify right side
    389,813.04x = 113,486,968,205.58
  5. Step 5: Solve for x
    x = 113,486,968,205.58/389,813.04
  6. Step 6: Final answer
    x = 291,131.79

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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.