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Finding the Fourth Proportional to 370,720.91, 511,595.52 and 200,955.44

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Solution

The fourth proportional to 370,720.91, 511,595.52 and 200,955.44 is: 277,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,720.91 : 511,595.52 = 200,955.44 : x
  2. Step 2: Convert to fraction form
    370,720.91/511,595.52 = 200,955.44/x
  3. Step 3: Cross multiply
    370,720.91x = 511,595.52 × 200,955.44
  4. Step 4: Simplify right side
    370,720.91x = 102,807,902,823.63
  5. Step 5: Solve for x
    x = 102,807,902,823.63/370,720.91
  6. Step 6: Final answer
    x = 277,318.87

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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.