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Finding the Fourth Proportional to 370,387.48, 511,134.76 and 200,621.62

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Solution

The fourth proportional to 370,387.48, 511,134.76 and 200,621.62 is: 276,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,387.48 : 511,134.76 = 200,621.62 : x
  2. Step 2: Convert to fraction form
    370,387.48/511,134.76 = 200,621.62/x
  3. Step 3: Cross multiply
    370,387.48x = 511,134.76 × 200,621.62
  4. Step 4: Simplify right side
    370,387.48x = 102,544,683,589.51
  5. Step 5: Solve for x
    x = 102,544,683,589.51/370,387.48
  6. Step 6: Final answer
    x = 276,857.86

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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.