Home / 380,338.07-570,796.34-140,678.73

Finding the Fourth Proportional to 380,338.07, 570,796.34 and 140,678.73

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Solution

The fourth proportional to 380,338.07, 570,796.34 and 140,678.73 is: 211,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,338.07 : 570,796.34 = 140,678.73 : x
  2. Step 2: Convert to fraction form
    380,338.07/570,796.34 = 140,678.73/x
  3. Step 3: Cross multiply
    380,338.07x = 570,796.34 × 140,678.73
  4. Step 4: Simplify right side
    380,338.07x = 80,298,903,496.45
  5. Step 5: Solve for x
    x = 80,298,903,496.45/380,338.07
  6. Step 6: Final answer
    x = 211,125.08

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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.