Home / 245,682.30-339,040.50-138,254.13

Finding the Fourth Proportional to 245,682.30, 339,040.50 and 138,254.13

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Solution

The fourth proportional to 245,682.30, 339,040.50 and 138,254.13 is: 190,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,682.30 : 339,040.50 = 138,254.13 : x
  2. Step 2: Convert to fraction form
    245,682.30/339,040.50 = 138,254.13/x
  3. Step 3: Cross multiply
    245,682.30x = 339,040.50 × 138,254.13
  4. Step 4: Simplify right side
    245,682.30x = 46,873,749,362.27
  5. Step 5: Solve for x
    x = 46,873,749,362.27/245,682.30
  6. Step 6: Final answer
    x = 190,790.10

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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.