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Finding the Fourth Proportional to 438,293.61, 657,844.56 and 222,303.96

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Solution

The fourth proportional to 438,293.61, 657,844.56 and 222,303.96 is: 333,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,293.61 : 657,844.56 = 222,303.96 : x
  2. Step 2: Convert to fraction form
    438,293.61/657,844.56 = 222,303.96/x
  3. Step 3: Cross multiply
    438,293.61x = 657,844.56 × 222,303.96
  4. Step 4: Simplify right side
    438,293.61x = 146,241,450,752.46
  5. Step 5: Solve for x
    x = 146,241,450,752.46/438,293.61
  6. Step 6: Final answer
    x = 333,660.92

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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.