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Finding the Fourth Proportional to 308,511.60, 462,421.80 and 175,455.60

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Solution

The fourth proportional to 308,511.60, 462,421.80 and 175,455.60 is: 262,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,511.60 : 462,421.80 = 175,455.60 : x
  2. Step 2: Convert to fraction form
    308,511.60/462,421.80 = 175,455.60/x
  3. Step 3: Cross multiply
    308,511.60x = 462,421.80 × 175,455.60
  4. Step 4: Simplify right side
    308,511.60x = 81,134,494,372.08
  5. Step 5: Solve for x
    x = 81,134,494,372.08/308,511.60
  6. Step 6: Final answer
    x = 262,986.85

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1.5x scale

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.