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Finding the Fourth Proportional to 303,026.40, 454,539.60 and 219,045.60

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Solution

The fourth proportional to 303,026.40, 454,539.60 and 219,045.60 is: 328,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,026.40 : 454,539.60 = 219,045.60 : x
  2. Step 2: Convert to fraction form
    303,026.40/454,539.60 = 219,045.60/x
  3. Step 3: Cross multiply
    303,026.40x = 454,539.60 × 219,045.60
  4. Step 4: Simplify right side
    303,026.40x = 99,564,899,405.76
  5. Step 5: Solve for x
    x = 99,564,899,405.76/303,026.40
  6. Step 6: Final answer
    x = 328,568.40

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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.