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Finding the Fourth Proportional to 290,772.84, 436,017 and 119,962.80

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Solution

The fourth proportional to 290,772.84, 436,017 and 119,962.80 is: 179,885.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,772.84 : 436,017 = 119,962.80 : x
  2. Step 2: Convert to fraction form
    290,772.84/436,017 = 119,962.80/x
  3. Step 3: Cross multiply
    290,772.84x = 436,017 × 119,962.80
  4. Step 4: Simplify right side
    290,772.84x = 52,305,820,167.60
  5. Step 5: Solve for x
    x = 52,305,820,167.60/290,772.84
  6. Step 6: Final answer
    x = 179,885.51

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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.