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Finding the Fourth Proportional to 300,093.15, 450,139.73 and 282,985.95

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Solution

The fourth proportional to 300,093.15, 450,139.73 and 282,985.95 is: 424,478.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,093.15 : 450,139.73 = 282,985.95 : x
  2. Step 2: Convert to fraction form
    300,093.15/450,139.73 = 282,985.95/x
  3. Step 3: Cross multiply
    300,093.15x = 450,139.73 × 282,985.95
  4. Step 4: Simplify right side
    300,093.15x = 127,383,217,711.86
  5. Step 5: Solve for x
    x = 127,383,217,711.86/300,093.15
  6. Step 6: Final answer
    x = 424,478.93

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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.