Home / 380,564.07-570,910.95-131,187.75

Finding the Fourth Proportional to 380,564.07, 570,910.95 and 131,187.75

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Solution

The fourth proportional to 380,564.07, 570,910.95 and 131,187.75 is: 196,803.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,564.07 : 570,910.95 = 131,187.75 : x
  2. Step 2: Convert to fraction form
    380,564.07/570,910.95 = 131,187.75/x
  3. Step 3: Cross multiply
    380,564.07x = 570,910.95 × 131,187.75
  4. Step 4: Simplify right side
    380,564.07x = 74,896,522,980.86
  5. Step 5: Solve for x
    x = 74,896,522,980.86/380,564.07
  6. Step 6: Final answer
    x = 196,803.98

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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.