Home / 409,731.12-565,383.30-248,625.36

Finding the Fourth Proportional to 409,731.12, 565,383.30 and 248,625.36

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Solution

The fourth proportional to 409,731.12, 565,383.30 and 248,625.36 is: 343,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,731.12 : 565,383.30 = 248,625.36 : x
  2. Step 2: Convert to fraction form
    409,731.12/565,383.30 = 248,625.36/x
  3. Step 3: Cross multiply
    409,731.12x = 565,383.30 × 248,625.36
  4. Step 4: Simplify right side
    409,731.12x = 140,568,626,500.49
  5. Step 5: Solve for x
    x = 140,568,626,500.49/409,731.12
  6. Step 6: Final answer
    x = 343,075.30

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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.