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Finding the Fourth Proportional to 280,624.52, 420,940.42 and 93,636.02

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Solution

The fourth proportional to 280,624.52, 420,940.42 and 93,636.02 is: 140,455.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,624.52 : 420,940.42 = 93,636.02 : x
  2. Step 2: Convert to fraction form
    280,624.52/420,940.42 = 93,636.02/x
  3. Step 3: Cross multiply
    280,624.52x = 420,940.42 × 93,636.02
  4. Step 4: Simplify right side
    280,624.52x = 39,415,185,585.93
  5. Step 5: Solve for x
    x = 39,415,185,585.93/280,624.52
  6. Step 6: Final answer
    x = 140,455.24

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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.