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Finding the Fourth Proportional to 388,646.22, 536,466 and 227,553

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Solution

The fourth proportional to 388,646.22, 536,466 and 227,553 is: 314,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,646.22 : 536,466 = 227,553 : x
  2. Step 2: Convert to fraction form
    388,646.22/536,466 = 227,553/x
  3. Step 3: Cross multiply
    388,646.22x = 536,466 × 227,553
  4. Step 4: Simplify right side
    388,646.22x = 122,074,447,698
  5. Step 5: Solve for x
    x = 122,074,447,698/388,646.22
  6. Step 6: Final answer
    x = 314,101.72

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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.