Home / 248,317.78-342,671.96-135,138.10

Finding the Fourth Proportional to 248,317.78, 342,671.96 and 135,138.10

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Solution

The fourth proportional to 248,317.78, 342,671.96 and 135,138.10 is: 186,487.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,317.78 : 342,671.96 = 135,138.10 : x
  2. Step 2: Convert to fraction form
    248,317.78/342,671.96 = 135,138.10/x
  3. Step 3: Cross multiply
    248,317.78x = 342,671.96 × 135,138.10
  4. Step 4: Simplify right side
    248,317.78x = 46,308,037,597.68
  5. Step 5: Solve for x
    x = 46,308,037,597.68/248,317.78
  6. Step 6: Final answer
    x = 186,487.00

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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.