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Finding the Fourth Proportional to 554,328.65, 831,485.67 and 133,600.88

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Solution

The fourth proportional to 554,328.65, 831,485.67 and 133,600.88 is: 200,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,328.65 : 831,485.67 = 133,600.88 : x
  2. Step 2: Convert to fraction form
    554,328.65/831,485.67 = 133,600.88/x
  3. Step 3: Cross multiply
    554,328.65x = 831,485.67 × 133,600.88
  4. Step 4: Simplify right side
    554,328.65x = 111,087,217,219.39
  5. Step 5: Solve for x
    x = 111,087,217,219.39/554,328.65
  6. Step 6: Final answer
    x = 200,399.56

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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.