Home / 370,787.22-511,680.51-209,636.10

Finding the Fourth Proportional to 370,787.22, 511,680.51 and 209,636.10

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Solution

The fourth proportional to 370,787.22, 511,680.51 and 209,636.10 is: 289,294.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,787.22 : 511,680.51 = 209,636.10 : x
  2. Step 2: Convert to fraction form
    370,787.22/511,680.51 = 209,636.10/x
  3. Step 3: Cross multiply
    370,787.22x = 511,680.51 × 209,636.10
  4. Step 4: Simplify right side
    370,787.22x = 107,266,706,562.41
  5. Step 5: Solve for x
    x = 107,266,706,562.41/370,787.22
  6. Step 6: Final answer
    x = 289,294.51

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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.