Home / 255,288.51-352,298.03-142,137.99

Finding the Fourth Proportional to 255,288.51, 352,298.03 and 142,137.99

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Solution

The fourth proportional to 255,288.51, 352,298.03 and 142,137.99 is: 196,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,288.51 : 352,298.03 = 142,137.99 : x
  2. Step 2: Convert to fraction form
    255,288.51/352,298.03 = 142,137.99/x
  3. Step 3: Cross multiply
    255,288.51x = 352,298.03 × 142,137.99
  4. Step 4: Simplify right side
    255,288.51x = 50,074,933,154.47
  5. Step 5: Solve for x
    x = 50,074,933,154.47/255,288.51
  6. Step 6: Final answer
    x = 196,150.36

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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.