Home / 370,707.05-511,573.23-209,561.81

Finding the Fourth Proportional to 370,707.05, 511,573.23 and 209,561.81

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Solution

The fourth proportional to 370,707.05, 511,573.23 and 209,561.81 is: 289,193.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,707.05 : 511,573.23 = 209,561.81 : x
  2. Step 2: Convert to fraction form
    370,707.05/511,573.23 = 209,561.81/x
  3. Step 3: Cross multiply
    370,707.05x = 511,573.23 × 209,561.81
  4. Step 4: Simplify right side
    370,707.05x = 107,206,209,468.48
  5. Step 5: Solve for x
    x = 107,206,209,468.48/370,707.05
  6. Step 6: Final answer
    x = 289,193.88

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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.