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Finding the Fourth Proportional to 388,577.84, 536,239.44 and 227,401.52

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Solution

The fourth proportional to 388,577.84, 536,239.44 and 227,401.52 is: 313,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,577.84 : 536,239.44 = 227,401.52 : x
  2. Step 2: Convert to fraction form
    388,577.84/536,239.44 = 227,401.52/x
  3. Step 3: Cross multiply
    388,577.84x = 536,239.44 × 227,401.52
  4. Step 4: Simplify right side
    388,577.84x = 121,941,663,739.95
  5. Step 5: Solve for x
    x = 121,941,663,739.95/388,577.84
  6. Step 6: Final answer
    x = 313,815.28

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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.