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Finding the Fourth Proportional to 303,326.10, 454,989.15 and 219,345.30

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Solution

The fourth proportional to 303,326.10, 454,989.15 and 219,345.30 is: 329,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,326.10 : 454,989.15 = 219,345.30 : x
  2. Step 2: Convert to fraction form
    303,326.10/454,989.15 = 219,345.30/x
  3. Step 3: Cross multiply
    303,326.10x = 454,989.15 × 219,345.30
  4. Step 4: Simplify right side
    303,326.10x = 99,799,731,603.50
  5. Step 5: Solve for x
    x = 99,799,731,603.50/303,326.10
  6. Step 6: Final answer
    x = 329,017.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.