Home / 377,908.04-521,509.78-208,138.60

Finding the Fourth Proportional to 377,908.04, 521,509.78 and 208,138.60

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Solution

The fourth proportional to 377,908.04, 521,509.78 and 208,138.60 is: 287,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,908.04 : 521,509.78 = 208,138.60 : x
  2. Step 2: Convert to fraction form
    377,908.04/521,509.78 = 208,138.60/x
  3. Step 3: Cross multiply
    377,908.04x = 521,509.78 × 208,138.60
  4. Step 4: Simplify right side
    377,908.04x = 108,546,315,495.51
  5. Step 5: Solve for x
    x = 108,546,315,495.51/377,908.04
  6. Step 6: Final answer
    x = 287,229.44

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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.