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Finding the Fourth Proportional to 665,339.28, 997,994.47 and 185,554.28

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Solution

The fourth proportional to 665,339.28, 997,994.47 and 185,554.28 is: 278,327.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,339.28 : 997,994.47 = 185,554.28 : x
  2. Step 2: Convert to fraction form
    665,339.28/997,994.47 = 185,554.28/x
  3. Step 3: Cross multiply
    665,339.28x = 997,994.47 × 185,554.28
  4. Step 4: Simplify right side
    665,339.28x = 185,182,145,324.83
  5. Step 5: Solve for x
    x = 185,182,145,324.83/665,339.28
  6. Step 6: Final answer
    x = 278,327.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.