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Finding the Fourth Proportional to 336,438.80, 504,658.20 and 136,692.80

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Solution

The fourth proportional to 336,438.80, 504,658.20 and 136,692.80 is: 205,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,438.80 : 504,658.20 = 136,692.80 : x
  2. Step 2: Convert to fraction form
    336,438.80/504,658.20 = 136,692.80/x
  3. Step 3: Cross multiply
    336,438.80x = 504,658.20 × 136,692.80
  4. Step 4: Simplify right side
    336,438.80x = 68,983,142,400.96
  5. Step 5: Solve for x
    x = 68,983,142,400.96/336,438.80
  6. Step 6: Final answer
    x = 205,039.20

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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.