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Finding the Fourth Proportional to 280,551.60, 420,829.02 and 93,562.56

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Solution

The fourth proportional to 280,551.60, 420,829.02 and 93,562.56 is: 140,344.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,551.60 : 420,829.02 = 93,562.56 : x
  2. Step 2: Convert to fraction form
    280,551.60/420,829.02 = 93,562.56/x
  3. Step 3: Cross multiply
    280,551.60x = 420,829.02 × 93,562.56
  4. Step 4: Simplify right side
    280,551.60x = 39,373,840,433.49
  5. Step 5: Solve for x
    x = 39,373,840,433.49/280,551.60
  6. Step 6: Final answer
    x = 140,344.38

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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.