Home / 313,966.18-434,414.26-273,763.72

Finding the Fourth Proportional to 313,966.18, 434,414.26 and 273,763.72

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Solution

The fourth proportional to 313,966.18, 434,414.26 and 273,763.72 is: 378,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,966.18 : 434,414.26 = 273,763.72 : x
  2. Step 2: Convert to fraction form
    313,966.18/434,414.26 = 273,763.72/x
  3. Step 3: Cross multiply
    313,966.18x = 434,414.26 × 273,763.72
  4. Step 4: Simplify right side
    313,966.18x = 118,926,863,838.65
  5. Step 5: Solve for x
    x = 118,926,863,838.65/313,966.18
  6. Step 6: Final answer
    x = 378,788.77

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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.