Home / 309,262.86-426,185.55-219,683.34

Finding the Fourth Proportional to 309,262.86, 426,185.55 and 219,683.34

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Solution

The fourth proportional to 309,262.86, 426,185.55 and 219,683.34 is: 302,738.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,262.86 : 426,185.55 = 219,683.34 : x
  2. Step 2: Convert to fraction form
    309,262.86/426,185.55 = 219,683.34/x
  3. Step 3: Cross multiply
    309,262.86x = 426,185.55 × 219,683.34
  4. Step 4: Simplify right side
    309,262.86x = 93,625,865,083.74
  5. Step 5: Solve for x
    x = 93,625,865,083.74/309,262.86
  6. Step 6: Final answer
    x = 302,738.79

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1.5x scale

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.