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Finding the Fourth Proportional to 388,642.49, 582,521.52 and 236,504.02

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Solution

The fourth proportional to 388,642.49, 582,521.52 and 236,504.02 is: 354,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,642.49 : 582,521.52 = 236,504.02 : x
  2. Step 2: Convert to fraction form
    388,642.49/582,521.52 = 236,504.02/x
  3. Step 3: Cross multiply
    388,642.49x = 582,521.52 × 236,504.02
  4. Step 4: Simplify right side
    388,642.49x = 137,768,680,033.99
  5. Step 5: Solve for x
    x = 137,768,680,033.99/388,642.49
  6. Step 6: Final answer
    x = 354,486.92

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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.