Home / 407,081.35-561,758.97-245,908.33

Finding the Fourth Proportional to 407,081.35, 561,758.97 and 245,908.33

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Solution

The fourth proportional to 407,081.35, 561,758.97 and 245,908.33 is: 339,345.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,081.35 : 561,758.97 = 245,908.33 : x
  2. Step 2: Convert to fraction form
    407,081.35/561,758.97 = 245,908.33/x
  3. Step 3: Cross multiply
    407,081.35x = 561,758.97 × 245,908.33
  4. Step 4: Simplify right side
    407,081.35x = 138,141,210,581.31
  5. Step 5: Solve for x
    x = 138,141,210,581.31/407,081.35
  6. Step 6: Final answer
    x = 339,345.47

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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.