Home / 389,175.08-537,054.45-219,409.34

Finding the Fourth Proportional to 389,175.08, 537,054.45 and 219,409.34

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Solution

The fourth proportional to 389,175.08, 537,054.45 and 219,409.34 is: 302,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,175.08 : 537,054.45 = 219,409.34 : x
  2. Step 2: Convert to fraction form
    389,175.08/537,054.45 = 219,409.34/x
  3. Step 3: Cross multiply
    389,175.08x = 537,054.45 × 219,409.34
  4. Step 4: Simplify right side
    389,175.08x = 117,834,762,418.56
  5. Step 5: Solve for x
    x = 117,834,762,418.56/389,175.08
  6. Step 6: Final answer
    x = 302,780.85

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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.