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Finding the Fourth Proportional to 388,613.95, 582,683.46 and 186,271.97

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Solution

The fourth proportional to 388,613.95, 582,683.46 and 186,271.97 is: 279,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,613.95 : 582,683.46 = 186,271.97 : x
  2. Step 2: Convert to fraction form
    388,613.95/582,683.46 = 186,271.97/x
  3. Step 3: Cross multiply
    388,613.95x = 582,683.46 × 186,271.97
  4. Step 4: Simplify right side
    388,613.95x = 108,537,595,049.26
  5. Step 5: Solve for x
    x = 108,537,595,049.26/388,613.95
  6. Step 6: Final answer
    x = 279,294.13

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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.