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Finding the Fourth Proportional to 377,745.84, 521,291.16 and 216,606.96

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Solution

The fourth proportional to 377,745.84, 521,291.16 and 216,606.96 is: 298,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,745.84 : 521,291.16 = 216,606.96 : x
  2. Step 2: Convert to fraction form
    377,745.84/521,291.16 = 216,606.96/x
  3. Step 3: Cross multiply
    377,745.84x = 521,291.16 × 216,606.96
  4. Step 4: Simplify right side
    377,745.84x = 112,915,293,442.47
  5. Step 5: Solve for x
    x = 112,915,293,442.47/377,745.84
  6. Step 6: Final answer
    x = 298,918.69

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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.