Home / 318,106.32-438,987.64-182,142.42

Finding the Fourth Proportional to 318,106.32, 438,987.64 and 182,142.42

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Solution

The fourth proportional to 318,106.32, 438,987.64 and 182,142.42 is: 251,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,106.32 : 438,987.64 = 182,142.42 : x
  2. Step 2: Convert to fraction form
    318,106.32/438,987.64 = 182,142.42/x
  3. Step 3: Cross multiply
    318,106.32x = 438,987.64 × 182,142.42
  4. Step 4: Simplify right side
    318,106.32x = 79,958,271,099.69
  5. Step 5: Solve for x
    x = 79,958,271,099.69/318,106.32
  6. Step 6: Final answer
    x = 251,357.07

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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.