Home / 380,628.90-570,168.27-180,342.18

Finding the Fourth Proportional to 380,628.90, 570,168.27 and 180,342.18

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Solution

The fourth proportional to 380,628.90, 570,168.27 and 180,342.18 is: 270,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,628.90 : 570,168.27 = 180,342.18 : x
  2. Step 2: Convert to fraction form
    380,628.90/570,168.27 = 180,342.18/x
  3. Step 3: Cross multiply
    380,628.90x = 570,168.27 × 180,342.18
  4. Step 4: Simplify right side
    380,628.90x = 102,825,388,778.63
  5. Step 5: Solve for x
    x = 102,825,388,778.63/380,628.90
  6. Step 6: Final answer
    x = 270,146.04

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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.