Home / 370,739.67-511,637.82-209,601.51

Finding the Fourth Proportional to 370,739.67, 511,637.82 and 209,601.51

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Solution

The fourth proportional to 370,739.67, 511,637.82 and 209,601.51 is: 289,259.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,739.67 : 511,637.82 = 209,601.51 : x
  2. Step 2: Convert to fraction form
    370,739.67/511,637.82 = 209,601.51/x
  3. Step 3: Cross multiply
    370,739.67x = 511,637.82 × 209,601.51
  4. Step 4: Simplify right side
    370,739.67x = 107,240,059,645.11
  5. Step 5: Solve for x
    x = 107,240,059,645.11/370,739.67
  6. Step 6: Final answer
    x = 289,259.74

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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.