Home / 245,655.36-338,999.58-136,758.24

Finding the Fourth Proportional to 245,655.36, 338,999.58 and 136,758.24

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Solution

The fourth proportional to 245,655.36, 338,999.58 and 136,758.24 is: 188,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,655.36 : 338,999.58 = 136,758.24 : x
  2. Step 2: Convert to fraction form
    245,655.36/338,999.58 = 136,758.24/x
  3. Step 3: Cross multiply
    245,655.36x = 338,999.58 × 136,758.24
  4. Step 4: Simplify right side
    245,655.36x = 46,360,985,921.54
  5. Step 5: Solve for x
    x = 46,360,985,921.54/245,655.36
  6. Step 6: Final answer
    x = 188,723.69

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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.