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Finding the Fourth Proportional to 377,829, 521,404.08 and 208,062.72

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Solution

The fourth proportional to 377,829, 521,404.08 and 208,062.72 is: 287,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,829 : 521,404.08 = 208,062.72 : x
  2. Step 2: Convert to fraction form
    377,829/521,404.08 = 208,062.72/x
  3. Step 3: Cross multiply
    377,829x = 521,404.08 × 208,062.72
  4. Step 4: Simplify right side
    377,829x = 108,484,751,103.90
  5. Step 5: Solve for x
    x = 108,484,751,103.90/377,829
  6. Step 6: Final answer
    x = 287,126.59

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1.5x scale

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.