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Finding the Fourth Proportional to 437,978.34, 656,966.30 and 105,554.34

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Solution

The fourth proportional to 437,978.34, 656,966.30 and 105,554.34 is: 158,331.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,978.34 : 656,966.30 = 105,554.34 : x
  2. Step 2: Convert to fraction form
    437,978.34/656,966.30 = 105,554.34/x
  3. Step 3: Cross multiply
    437,978.34x = 656,966.30 × 105,554.34
  4. Step 4: Simplify right side
    437,978.34x = 69,345,643,670.97
  5. Step 5: Solve for x
    x = 69,345,643,670.97/437,978.34
  6. Step 6: Final answer
    x = 158,331.22

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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.