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Finding the Fourth Proportional to 554,736, 831,964.80 and 155,273.28

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Solution

The fourth proportional to 554,736, 831,964.80 and 155,273.28 is: 232,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,736 : 831,964.80 = 155,273.28 : x
  2. Step 2: Convert to fraction form
    554,736/831,964.80 = 155,273.28/x
  3. Step 3: Cross multiply
    554,736x = 831,964.80 × 155,273.28
  4. Step 4: Simplify right side
    554,736x = 129,181,903,340.54
  5. Step 5: Solve for x
    x = 129,181,903,340.54/554,736
  6. Step 6: Final answer
    x = 232,870.96

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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.