Home / 217,509.12-299,989.44-179,717.76

Finding the Fourth Proportional to 217,509.12, 299,989.44 and 179,717.76

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Solution

The fourth proportional to 217,509.12, 299,989.44 and 179,717.76 is: 247,867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,509.12 : 299,989.44 = 179,717.76 : x
  2. Step 2: Convert to fraction form
    217,509.12/299,989.44 = 179,717.76/x
  3. Step 3: Cross multiply
    217,509.12x = 299,989.44 × 179,717.76
  4. Step 4: Simplify right side
    217,509.12x = 53,913,430,180.45
  5. Step 5: Solve for x
    x = 53,913,430,180.45/217,509.12
  6. Step 6: Final answer
    x = 247,867.45

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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.