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Finding the Fourth Proportional to 438,182.40, 657,273.60 and 216,998.40

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Solution

The fourth proportional to 438,182.40, 657,273.60 and 216,998.40 is: 325,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,182.40 : 657,273.60 = 216,998.40 : x
  2. Step 2: Convert to fraction form
    438,182.40/657,273.60 = 216,998.40/x
  3. Step 3: Cross multiply
    438,182.40x = 657,273.60 × 216,998.40
  4. Step 4: Simplify right side
    438,182.40x = 142,627,319,562.24
  5. Step 5: Solve for x
    x = 142,627,319,562.24/438,182.40
  6. Step 6: Final answer
    x = 325,497.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.