Home / 305,120.45-457,680.69-118,131.95

Finding the Fourth Proportional to 305,120.45, 457,680.69 and 118,131.95

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Solution

The fourth proportional to 305,120.45, 457,680.69 and 118,131.95 is: 177,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,120.45 : 457,680.69 = 118,131.95 : x
  2. Step 2: Convert to fraction form
    305,120.45/457,680.69 = 118,131.95/x
  3. Step 3: Cross multiply
    305,120.45x = 457,680.69 × 118,131.95
  4. Step 4: Simplify right side
    305,120.45x = 54,066,710,098.64
  5. Step 5: Solve for x
    x = 54,066,710,098.64/305,120.45
  6. Step 6: Final answer
    x = 177,197.93

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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.