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Finding the Fourth Proportional to 411,874.80, 618,157.80 and 201,692.40

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Solution

The fourth proportional to 411,874.80, 618,157.80 and 201,692.40 is: 302,707.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,874.80 : 618,157.80 = 201,692.40 : x
  2. Step 2: Convert to fraction form
    411,874.80/618,157.80 = 201,692.40/x
  3. Step 3: Cross multiply
    411,874.80x = 618,157.80 × 201,692.40
  4. Step 4: Simplify right side
    411,874.80x = 124,677,730,260.72
  5. Step 5: Solve for x
    x = 124,677,730,260.72/411,874.80
  6. Step 6: Final answer
    x = 302,707.84

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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.