Home / 345,020.31-475,636.05-268,404.84

Finding the Fourth Proportional to 345,020.31, 475,636.05 and 268,404.84

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Solution

The fourth proportional to 345,020.31, 475,636.05 and 268,404.84 is: 370,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,020.31 : 475,636.05 = 268,404.84 : x
  2. Step 2: Convert to fraction form
    345,020.31/475,636.05 = 268,404.84/x
  3. Step 3: Cross multiply
    345,020.31x = 475,636.05 × 268,404.84
  4. Step 4: Simplify right side
    345,020.31x = 127,663,017,898.48
  5. Step 5: Solve for x
    x = 127,663,017,898.48/345,020.31
  6. Step 6: Final answer
    x = 370,015.95

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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.