Home / 248,317.45-342,678.60-135,140.20

Finding the Fourth Proportional to 248,317.45, 342,678.60 and 135,140.20

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Solution

The fourth proportional to 248,317.45, 342,678.60 and 135,140.20 is: 186,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,317.45 : 342,678.60 = 135,140.20 : x
  2. Step 2: Convert to fraction form
    248,317.45/342,678.60 = 135,140.20/x
  3. Step 3: Cross multiply
    248,317.45x = 342,678.60 × 135,140.20
  4. Step 4: Simplify right side
    248,317.45x = 46,309,653,683.02
  5. Step 5: Solve for x
    x = 46,309,653,683.02/248,317.45
  6. Step 6: Final answer
    x = 186,493.76

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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.