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Finding the Fourth Proportional to 370,685.52, 511,546.56 and 200,919.60

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Solution

The fourth proportional to 370,685.52, 511,546.56 and 200,919.60 is: 277,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,685.52 : 511,546.56 = 200,919.60 : x
  2. Step 2: Convert to fraction form
    370,685.52/511,546.56 = 200,919.60/x
  3. Step 3: Cross multiply
    370,685.52x = 511,546.56 × 200,919.60
  4. Step 4: Simplify right side
    370,685.52x = 102,779,730,216.58
  5. Step 5: Solve for x
    x = 102,779,730,216.58/370,685.52
  6. Step 6: Final answer
    x = 277,269.34

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1.5x scale

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.