Home / 245,995.20-339,448.32-138,548.16

Finding the Fourth Proportional to 245,995.20, 339,448.32 and 138,548.16

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Solution

The fourth proportional to 245,995.20, 339,448.32 and 138,548.16 is: 191,182.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,995.20 : 339,448.32 = 138,548.16 : x
  2. Step 2: Convert to fraction form
    245,995.20/339,448.32 = 138,548.16/x
  3. Step 3: Cross multiply
    245,995.20x = 339,448.32 × 138,548.16
  4. Step 4: Simplify right side
    245,995.20x = 47,029,940,151.09
  5. Step 5: Solve for x
    x = 47,029,940,151.09/245,995.20
  6. Step 6: Final answer
    x = 191,182.35

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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.