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Finding the Fourth Proportional to 377,803.44, 521,390.52 and 208,040.40

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Solution

The fourth proportional to 377,803.44, 521,390.52 and 208,040.40 is: 287,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,803.44 : 521,390.52 = 208,040.40 : x
  2. Step 2: Convert to fraction form
    377,803.44/521,390.52 = 208,040.40/x
  3. Step 3: Cross multiply
    377,803.44x = 521,390.52 × 208,040.40
  4. Step 4: Simplify right side
    377,803.44x = 108,470,292,337.01
  5. Step 5: Solve for x
    x = 108,470,292,337.01/377,803.44
  6. Step 6: Final answer
    x = 287,107.74

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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.