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Finding the Fourth Proportional to 369,751.32, 510,256.86 and 199,985.44

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Solution

The fourth proportional to 369,751.32, 510,256.86 and 199,985.44 is: 275,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,751.32 : 510,256.86 = 199,985.44 : x
  2. Step 2: Convert to fraction form
    369,751.32/510,256.86 = 199,985.44/x
  3. Step 3: Cross multiply
    369,751.32x = 510,256.86 × 199,985.44
  4. Step 4: Simplify right side
    369,751.32x = 102,043,942,660.12
  5. Step 5: Solve for x
    x = 102,043,942,660.12/369,751.32
  6. Step 6: Final answer
    x = 275,979.93

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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.