Home / 370,852.53-511,786.59-209,731.68

Finding the Fourth Proportional to 370,852.53, 511,786.59 and 209,731.68

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Solution

The fourth proportional to 370,852.53, 511,786.59 and 209,731.68 is: 289,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,852.53 : 511,786.59 = 209,731.68 : x
  2. Step 2: Convert to fraction form
    370,852.53/511,786.59 = 209,731.68/x
  3. Step 3: Cross multiply
    370,852.53x = 511,786.59 × 209,731.68
  4. Step 4: Simplify right side
    370,852.53x = 107,337,861,322.17
  5. Step 5: Solve for x
    x = 107,337,861,322.17/370,852.53
  6. Step 6: Final answer
    x = 289,435.43

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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.