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Finding the Fourth Proportional to 395,612.64, 545,985.36 and 234,493.92

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Solution

The fourth proportional to 395,612.64, 545,985.36 and 234,493.92 is: 323,625.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,612.64 : 545,985.36 = 234,493.92 : x
  2. Step 2: Convert to fraction form
    395,612.64/545,985.36 = 234,493.92/x
  3. Step 3: Cross multiply
    395,612.64x = 545,985.36 × 234,493.92
  4. Step 4: Simplify right side
    395,612.64x = 128,030,247,329.01
  5. Step 5: Solve for x
    x = 128,030,247,329.01/395,612.64
  6. Step 6: Final answer
    x = 323,625.27

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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.