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Finding the Fourth Proportional to 388,962, 536,768.04 and 210,114

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Solution

The fourth proportional to 388,962, 536,768.04 and 210,114 is: 289,957.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,962 : 536,768.04 = 210,114 : x
  2. Step 2: Convert to fraction form
    388,962/536,768.04 = 210,114/x
  3. Step 3: Cross multiply
    388,962x = 536,768.04 × 210,114
  4. Step 4: Simplify right side
    388,962x = 112,782,479,956.56
  5. Step 5: Solve for x
    x = 112,782,479,956.56/388,962
  6. Step 6: Final answer
    x = 289,957.58

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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.