Home / 357,568.40-493,470.84-221,629.04

Finding the Fourth Proportional to 357,568.40, 493,470.84 and 221,629.04

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Solution

The fourth proportional to 357,568.40, 493,470.84 and 221,629.04 is: 305,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,568.40 : 493,470.84 = 221,629.04 : x
  2. Step 2: Convert to fraction form
    357,568.40/493,470.84 = 221,629.04/x
  3. Step 3: Cross multiply
    357,568.40x = 493,470.84 × 221,629.04
  4. Step 4: Simplify right side
    357,568.40x = 109,367,468,537.19
  5. Step 5: Solve for x
    x = 109,367,468,537.19/357,568.40
  6. Step 6: Final answer
    x = 305,864.47

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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.