Home / 307,142.28-423,711.48-179,739

Finding the Fourth Proportional to 307,142.28, 423,711.48 and 179,739

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Solution

The fourth proportional to 307,142.28, 423,711.48 and 179,739 is: 247,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,142.28 : 423,711.48 = 179,739 : x
  2. Step 2: Convert to fraction form
    307,142.28/423,711.48 = 179,739/x
  3. Step 3: Cross multiply
    307,142.28x = 423,711.48 × 179,739
  4. Step 4: Simplify right side
    307,142.28x = 76,157,477,703.72
  5. Step 5: Solve for x
    x = 76,157,477,703.72/307,142.28
  6. Step 6: Final answer
    x = 247,955.04

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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.