Home / 377,988.72-521,599.66-208,222.84

Finding the Fourth Proportional to 377,988.72, 521,599.66 and 208,222.84

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Solution

The fourth proportional to 377,988.72, 521,599.66 and 208,222.84 is: 287,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,988.72 : 521,599.66 = 208,222.84 : x
  2. Step 2: Convert to fraction form
    377,988.72/521,599.66 = 208,222.84/x
  3. Step 3: Cross multiply
    377,988.72x = 521,599.66 × 208,222.84
  4. Step 4: Simplify right side
    377,988.72x = 108,608,962,548.23
  5. Step 5: Solve for x
    x = 108,608,962,548.23/377,988.72
  6. Step 6: Final answer
    x = 287,333.87

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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.