Home / 389,113.13-536,984.33-219,347.25

Finding the Fourth Proportional to 389,113.13, 536,984.33 and 219,347.25

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Solution

The fourth proportional to 389,113.13, 536,984.33 and 219,347.25 is: 302,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,113.13 : 536,984.33 = 219,347.25 : x
  2. Step 2: Convert to fraction form
    389,113.13/536,984.33 = 219,347.25/x
  3. Step 3: Cross multiply
    389,113.13x = 536,984.33 × 219,347.25
  4. Step 4: Simplify right side
    389,113.13x = 117,786,034,981.86
  5. Step 5: Solve for x
    x = 117,786,034,981.86/389,113.13
  6. Step 6: Final answer
    x = 302,703.83

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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.