Home / 377,904.05-521,483.65-208,138.17

Finding the Fourth Proportional to 377,904.05, 521,483.65 and 208,138.17

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Solution

The fourth proportional to 377,904.05, 521,483.65 and 208,138.17 is: 287,217.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,904.05 : 521,483.65 = 208,138.17 : x
  2. Step 2: Convert to fraction form
    377,904.05/521,483.65 = 208,138.17/x
  3. Step 3: Cross multiply
    377,904.05x = 521,483.65 × 208,138.17
  4. Step 4: Simplify right side
    377,904.05x = 108,540,652,075.58
  5. Step 5: Solve for x
    x = 108,540,652,075.58/377,904.05
  6. Step 6: Final answer
    x = 287,217.49

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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.