Home / 353,787.19-488,161.46-208,638.51

Finding the Fourth Proportional to 353,787.19, 488,161.46 and 208,638.51

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Solution

The fourth proportional to 353,787.19, 488,161.46 and 208,638.51 is: 287,882.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,787.19 : 488,161.46 = 208,638.51 : x
  2. Step 2: Convert to fraction form
    353,787.19/488,161.46 = 208,638.51/x
  3. Step 3: Cross multiply
    353,787.19x = 488,161.46 × 208,638.51
  4. Step 4: Simplify right side
    353,787.19x = 101,849,280,175.42
  5. Step 5: Solve for x
    x = 101,849,280,175.42/353,787.19
  6. Step 6: Final answer
    x = 287,882.90

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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.