Home / 370,768.24-511,388.40-243,397.36

Finding the Fourth Proportional to 370,768.24, 511,388.40 and 243,397.36

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Solution

The fourth proportional to 370,768.24, 511,388.40 and 243,397.36 is: 335,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,768.24 : 511,388.40 = 243,397.36 : x
  2. Step 2: Convert to fraction form
    370,768.24/511,388.40 = 243,397.36/x
  3. Step 3: Cross multiply
    370,768.24x = 511,388.40 × 243,397.36
  4. Step 4: Simplify right side
    370,768.24x = 124,470,586,494.62
  5. Step 5: Solve for x
    x = 124,470,586,494.62/370,768.24
  6. Step 6: Final answer
    x = 335,709.95

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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.