Home / 389,113.38-536,984.66-219,347.50

Finding the Fourth Proportional to 389,113.38, 536,984.66 and 219,347.50

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Solution

The fourth proportional to 389,113.38, 536,984.66 and 219,347.50 is: 302,704.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,113.38 : 536,984.66 = 219,347.50 : x
  2. Step 2: Convert to fraction form
    389,113.38/536,984.66 = 219,347.50/x
  3. Step 3: Cross multiply
    389,113.38x = 536,984.66 × 219,347.50
  4. Step 4: Simplify right side
    389,113.38x = 117,786,242,709.35
  5. Step 5: Solve for x
    x = 117,786,242,709.35/389,113.38
  6. Step 6: Final answer
    x = 302,704.17

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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.