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Finding the Fourth Proportional to 617,371.20, 926,056.80 and 218,008.80

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Solution

The fourth proportional to 617,371.20, 926,056.80 and 218,008.80 is: 327,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,371.20 : 926,056.80 = 218,008.80 : x
  2. Step 2: Convert to fraction form
    617,371.20/926,056.80 = 218,008.80/x
  3. Step 3: Cross multiply
    617,371.20x = 926,056.80 × 218,008.80
  4. Step 4: Simplify right side
    617,371.20x = 201,888,531,699.84
  5. Step 5: Solve for x
    x = 201,888,531,699.84/617,371.20
  6. Step 6: Final answer
    x = 327,013.20

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Similar ratio
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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.