Home / 378,221-566,948.62-245,185.72

Finding the Fourth Proportional to 378,221, 566,948.62 and 245,185.72

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Solution

The fourth proportional to 378,221, 566,948.62 and 245,185.72 is: 367,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,221 : 566,948.62 = 245,185.72 : x
  2. Step 2: Convert to fraction form
    378,221/566,948.62 = 245,185.72/x
  3. Step 3: Cross multiply
    378,221x = 566,948.62 × 245,185.72
  4. Step 4: Simplify right side
    378,221x = 139,007,705,597.71
  5. Step 5: Solve for x
    x = 139,007,705,597.71/378,221
  6. Step 6: Final answer
    x = 367,530.37

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1.5x scale

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.