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Finding the Fourth Proportional to 360,039.84, 540,136.30 and 123,318.96

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Solution

The fourth proportional to 360,039.84, 540,136.30 and 123,318.96 is: 185,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,039.84 : 540,136.30 = 123,318.96 : x
  2. Step 2: Convert to fraction form
    360,039.84/540,136.30 = 123,318.96/x
  3. Step 3: Cross multiply
    360,039.84x = 540,136.30 × 123,318.96
  4. Step 4: Simplify right side
    360,039.84x = 66,609,046,774.25
  5. Step 5: Solve for x
    x = 66,609,046,774.25/360,039.84
  6. Step 6: Final answer
    x = 185,004.66

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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.