Home / 389,790.85-537,911.38-210,942.85

Finding the Fourth Proportional to 389,790.85, 537,911.38 and 210,942.85

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Solution

The fourth proportional to 389,790.85, 537,911.38 and 210,942.85 is: 291,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,790.85 : 537,911.38 = 210,942.85 : x
  2. Step 2: Convert to fraction form
    389,790.85/537,911.38 = 210,942.85/x
  3. Step 3: Cross multiply
    389,790.85x = 537,911.38 × 210,942.85
  4. Step 4: Simplify right side
    389,790.85x = 113,468,559,834.70
  5. Step 5: Solve for x
    x = 113,468,559,834.70/389,790.85
  6. Step 6: Final answer
    x = 291,101.14

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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.