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Finding the Fourth Proportional to 388,548.57, 536,213.59 and 216,466.44

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Solution

The fourth proportional to 388,548.57, 536,213.59 and 216,466.44 is: 298,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,548.57 : 536,213.59 = 216,466.44 : x
  2. Step 2: Convert to fraction form
    388,548.57/536,213.59 = 216,466.44/x
  3. Step 3: Cross multiply
    388,548.57x = 536,213.59 × 216,466.44
  4. Step 4: Simplify right side
    388,548.57x = 116,072,244,354.95
  5. Step 5: Solve for x
    x = 116,072,244,354.95/388,548.57
  6. Step 6: Final answer
    x = 298,732.91

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1.5x scale

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.