Home / 307,112.28-423,670.08-179,709

Finding the Fourth Proportional to 307,112.28, 423,670.08 and 179,709

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Solution

The fourth proportional to 307,112.28, 423,670.08 and 179,709 is: 247,913.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,112.28 : 423,670.08 = 179,709 : x
  2. Step 2: Convert to fraction form
    307,112.28/423,670.08 = 179,709/x
  3. Step 3: Cross multiply
    307,112.28x = 423,670.08 × 179,709
  4. Step 4: Simplify right side
    307,112.28x = 76,137,326,406.72
  5. Step 5: Solve for x
    x = 76,137,326,406.72/307,112.28
  6. Step 6: Final answer
    x = 247,913.65

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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.