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Finding the Fourth Proportional to 388,597.11, 536,242.62 and 214,132.95

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Solution

The fourth proportional to 388,597.11, 536,242.62 and 214,132.95 is: 295,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,597.11 : 536,242.62 = 214,132.95 : x
  2. Step 2: Convert to fraction form
    388,597.11/536,242.62 = 214,132.95/x
  3. Step 3: Cross multiply
    388,597.11x = 536,242.62 × 214,132.95
  4. Step 4: Simplify right side
    388,597.11x = 114,827,214,136.33
  5. Step 5: Solve for x
    x = 114,827,214,136.33/388,597.11
  6. Step 6: Final answer
    x = 295,491.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.