Home / 205,334.75-307,356.86-130,539.35

Finding the Fourth Proportional to 205,334.75, 307,356.86 and 130,539.35

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Solution

The fourth proportional to 205,334.75, 307,356.86 and 130,539.35 is: 195,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,334.75 : 307,356.86 = 130,539.35 : x
  2. Step 2: Convert to fraction form
    205,334.75/307,356.86 = 130,539.35/x
  3. Step 3: Cross multiply
    205,334.75x = 307,356.86 × 130,539.35
  4. Step 4: Simplify right side
    205,334.75x = 40,122,165,817.18
  5. Step 5: Solve for x
    x = 40,122,165,817.18/205,334.75
  6. Step 6: Final answer
    x = 195,398.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.