Home / 336,579.68-505,017.75-261,587.45

Finding the Fourth Proportional to 336,579.68, 505,017.75 and 261,587.45

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Solution

The fourth proportional to 336,579.68, 505,017.75 and 261,587.45 is: 392,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,579.68 : 505,017.75 = 261,587.45 : x
  2. Step 2: Convert to fraction form
    336,579.68/505,017.75 = 261,587.45/x
  3. Step 3: Cross multiply
    336,579.68x = 505,017.75 × 261,587.45
  4. Step 4: Simplify right side
    336,579.68x = 132,106,305,427.24
  5. Step 5: Solve for x
    x = 132,106,305,427.24/336,579.68
  6. Step 6: Final answer
    x = 392,496.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.