Home / 377,920.54-521,530.33-208,154.67

Finding the Fourth Proportional to 377,920.54, 521,530.33 and 208,154.67

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Solution

The fourth proportional to 377,920.54, 521,530.33 and 208,154.67 is: 287,253.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,920.54 : 521,530.33 = 208,154.67 : x
  2. Step 2: Convert to fraction form
    377,920.54/521,530.33 = 208,154.67/x
  3. Step 3: Cross multiply
    377,920.54x = 521,530.33 × 208,154.67
  4. Step 4: Simplify right side
    377,920.54x = 108,558,973,736.14
  5. Step 5: Solve for x
    x = 108,558,973,736.14/377,920.54
  6. Step 6: Final answer
    x = 287,253.44

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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.