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Finding the Fourth Proportional to 321,007.80, 481,511.70 and 241,692.60

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Solution

The fourth proportional to 321,007.80, 481,511.70 and 241,692.60 is: 362,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,007.80 : 481,511.70 = 241,692.60 : x
  2. Step 2: Convert to fraction form
    321,007.80/481,511.70 = 241,692.60/x
  3. Step 3: Cross multiply
    321,007.80x = 481,511.70 × 241,692.60
  4. Step 4: Simplify right side
    321,007.80x = 116,377,814,703.42
  5. Step 5: Solve for x
    x = 116,377,814,703.42/321,007.80
  6. Step 6: Final answer
    x = 362,538.90

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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.