Home / 380,585.20-570,957.94-143,922.64

Finding the Fourth Proportional to 380,585.20, 570,957.94 and 143,922.64

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Solution

The fourth proportional to 380,585.20, 570,957.94 and 143,922.64 is: 215,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,585.20 : 570,957.94 = 143,922.64 : x
  2. Step 2: Convert to fraction form
    380,585.20/570,957.94 = 143,922.64/x
  3. Step 3: Cross multiply
    380,585.20x = 570,957.94 × 143,922.64
  4. Step 4: Simplify right side
    380,585.20x = 82,173,774,053.76
  5. Step 5: Solve for x
    x = 82,173,774,053.76/380,585.20
  6. Step 6: Final answer
    x = 215,914.27

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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.