Home / 255,431.07-352,505.81-142,253.82

Finding the Fourth Proportional to 255,431.07, 352,505.81 and 142,253.82

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Solution

The fourth proportional to 255,431.07, 352,505.81 and 142,253.82 is: 196,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,431.07 : 352,505.81 = 142,253.82 : x
  2. Step 2: Convert to fraction form
    255,431.07/352,505.81 = 142,253.82/x
  3. Step 3: Cross multiply
    255,431.07x = 352,505.81 × 142,253.82
  4. Step 4: Simplify right side
    255,431.07x = 50,145,297,333.43
  5. Step 5: Solve for x
    x = 50,145,297,333.43/255,431.07
  6. Step 6: Final answer
    x = 196,316.36

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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.