Home / 377,790.40-521,344.29-216,636.04

Finding the Fourth Proportional to 377,790.40, 521,344.29 and 216,636.04

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Solution

The fourth proportional to 377,790.40, 521,344.29 and 216,636.04 is: 298,954.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,790.40 : 521,344.29 = 216,636.04 : x
  2. Step 2: Convert to fraction form
    377,790.40/521,344.29 = 216,636.04/x
  3. Step 3: Cross multiply
    377,790.40x = 521,344.29 × 216,636.04
  4. Step 4: Simplify right side
    377,790.40x = 112,941,962,462.21
  5. Step 5: Solve for x
    x = 112,941,962,462.21/377,790.40
  6. Step 6: Final answer
    x = 298,954.03

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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.