Home / 389,257.23-537,175.05-219,491.36

Finding the Fourth Proportional to 389,257.23, 537,175.05 and 219,491.36

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Solution

The fourth proportional to 389,257.23, 537,175.05 and 219,491.36 is: 302,898.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,257.23 : 537,175.05 = 219,491.36 : x
  2. Step 2: Convert to fraction form
    389,257.23/537,175.05 = 219,491.36/x
  3. Step 3: Cross multiply
    389,257.23x = 537,175.05 × 219,491.36
  4. Step 4: Simplify right side
    389,257.23x = 117,905,282,282.57
  5. Step 5: Solve for x
    x = 117,905,282,282.57/389,257.23
  6. Step 6: Final answer
    x = 302,898.12

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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.