Home / 356,332.09-491,720.81-195,187.86

Finding the Fourth Proportional to 356,332.09, 491,720.81 and 195,187.86

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Solution

The fourth proportional to 356,332.09, 491,720.81 and 195,187.86 is: 269,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,332.09 : 491,720.81 = 195,187.86 : x
  2. Step 2: Convert to fraction form
    356,332.09/491,720.81 = 195,187.86/x
  3. Step 3: Cross multiply
    356,332.09x = 491,720.81 × 195,187.86
  4. Step 4: Simplify right side
    356,332.09x = 95,977,932,621.37
  5. Step 5: Solve for x
    x = 95,977,932,621.37/356,332.09
  6. Step 6: Final answer
    x = 269,349.67

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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.