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Finding the Fourth Proportional to 377,284.19, 520,629 and 216,102.29

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Solution

The fourth proportional to 377,284.19, 520,629 and 216,102.29 is: 298,207.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,284.19 : 520,629 = 216,102.29 : x
  2. Step 2: Convert to fraction form
    377,284.19/520,629 = 216,102.29/x
  3. Step 3: Cross multiply
    377,284.19x = 520,629 × 216,102.29
  4. Step 4: Simplify right side
    377,284.19x = 112,509,119,140.41
  5. Step 5: Solve for x
    x = 112,509,119,140.41/377,284.19
  6. Step 6: Final answer
    x = 298,207.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.