Home / 307,049.07-423,728.60-178,012.63

Finding the Fourth Proportional to 307,049.07, 423,728.60 and 178,012.63

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Solution

The fourth proportional to 307,049.07, 423,728.60 and 178,012.63 is: 245,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,049.07 : 423,728.60 = 178,012.63 : x
  2. Step 2: Convert to fraction form
    307,049.07/423,728.60 = 178,012.63/x
  3. Step 3: Cross multiply
    307,049.07x = 423,728.60 × 178,012.63
  4. Step 4: Simplify right side
    307,049.07x = 75,429,043,133.14
  5. Step 5: Solve for x
    x = 75,429,043,133.14/307,049.07
  6. Step 6: Final answer
    x = 245,657.94

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1.5x scale

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.