Home / 318,765.39-439,919.01-179,075.31

Finding the Fourth Proportional to 318,765.39, 439,919.01 and 179,075.31

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Solution

The fourth proportional to 318,765.39, 439,919.01 and 179,075.31 is: 247,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,765.39 : 439,919.01 = 179,075.31 : x
  2. Step 2: Convert to fraction form
    318,765.39/439,919.01 = 179,075.31/x
  3. Step 3: Cross multiply
    318,765.39x = 439,919.01 × 179,075.31
  4. Step 4: Simplify right side
    318,765.39x = 78,778,633,090.64
  5. Step 5: Solve for x
    x = 78,778,633,090.64/318,765.39
  6. Step 6: Final answer
    x = 247,136.72

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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.