Home / 389,143.08-537,010.29-219,377.34

Finding the Fourth Proportional to 389,143.08, 537,010.29 and 219,377.34

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Solution

The fourth proportional to 389,143.08, 537,010.29 and 219,377.34 is: 302,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,143.08 : 537,010.29 = 219,377.34 : x
  2. Step 2: Convert to fraction form
    389,143.08/537,010.29 = 219,377.34/x
  3. Step 3: Cross multiply
    389,143.08x = 537,010.29 × 219,377.34
  4. Step 4: Simplify right side
    389,143.08x = 117,807,888,972.83
  5. Step 5: Solve for x
    x = 117,807,888,972.83/389,143.08
  6. Step 6: Final answer
    x = 302,736.69

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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.