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Finding the Fourth Proportional to 618,202.31, 927,036.14 and 213,437.21

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Solution

The fourth proportional to 618,202.31, 927,036.14 and 213,437.21 is: 320,063.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,202.31 : 927,036.14 = 213,437.21 : x
  2. Step 2: Convert to fraction form
    618,202.31/927,036.14 = 213,437.21/x
  3. Step 3: Cross multiply
    618,202.31x = 927,036.14 × 213,437.21
  4. Step 4: Simplify right side
    618,202.31x = 197,864,001,588.40
  5. Step 5: Solve for x
    x = 197,864,001,588.40/618,202.31
  6. Step 6: Final answer
    x = 320,063.51

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1.5x scale

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.