Home / 377,835.84-521,396.64-216,575.28

Finding the Fourth Proportional to 377,835.84, 521,396.64 and 216,575.28

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Solution

The fourth proportional to 377,835.84, 521,396.64 and 216,575.28 is: 298,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,835.84 : 521,396.64 = 216,575.28 : x
  2. Step 2: Convert to fraction form
    377,835.84/521,396.64 = 216,575.28/x
  3. Step 3: Cross multiply
    377,835.84x = 521,396.64 × 216,575.28
  4. Step 4: Simplify right side
    377,835.84x = 112,921,623,299.06
  5. Step 5: Solve for x
    x = 112,921,623,299.06/377,835.84
  6. Step 6: Final answer
    x = 298,864.25

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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.