Home / 389,271.42-537,194.66-219,505.59

Finding the Fourth Proportional to 389,271.42, 537,194.66 and 219,505.59

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Solution

The fourth proportional to 389,271.42, 537,194.66 and 219,505.59 is: 302,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,271.42 : 537,194.66 = 219,505.59 : x
  2. Step 2: Convert to fraction form
    389,271.42/537,194.66 = 219,505.59/x
  3. Step 3: Cross multiply
    389,271.42x = 537,194.66 × 219,505.59
  4. Step 4: Simplify right side
    389,271.42x = 117,917,229,690.62
  5. Step 5: Solve for x
    x = 117,917,229,690.62/389,271.42
  6. Step 6: Final answer
    x = 302,917.77

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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.