Home / 205,219.05-307,936.71-145,632.35

Finding the Fourth Proportional to 205,219.05, 307,936.71 and 145,632.35

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Solution

The fourth proportional to 205,219.05, 307,936.71 and 145,632.35 is: 218,525.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,219.05 : 307,936.71 = 145,632.35 : x
  2. Step 2: Convert to fraction form
    205,219.05/307,936.71 = 145,632.35/x
  3. Step 3: Cross multiply
    205,219.05x = 307,936.71 × 145,632.35
  4. Step 4: Simplify right side
    205,219.05x = 44,845,545,188.89
  5. Step 5: Solve for x
    x = 44,845,545,188.89/205,219.05
  6. Step 6: Final answer
    x = 218,525.25

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1.5x scale

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.