Home / 245,933.71-339,382.77-138,504.17

Finding the Fourth Proportional to 245,933.71, 339,382.77 and 138,504.17

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Solution

The fourth proportional to 245,933.71, 339,382.77 and 138,504.17 is: 191,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,933.71 : 339,382.77 = 138,504.17 : x
  2. Step 2: Convert to fraction form
    245,933.71/339,382.77 = 138,504.17/x
  3. Step 3: Cross multiply
    245,933.71x = 339,382.77 × 138,504.17
  4. Step 4: Simplify right side
    245,933.71x = 47,005,928,871.15
  5. Step 5: Solve for x
    x = 47,005,928,871.15/245,933.71
  6. Step 6: Final answer
    x = 191,132.52

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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.