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Finding the Fourth Proportional to 554,013.66, 831,020.55 and 133,289.55

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Solution

The fourth proportional to 554,013.66, 831,020.55 and 133,289.55 is: 199,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,013.66 : 831,020.55 = 133,289.55 : x
  2. Step 2: Convert to fraction form
    554,013.66/831,020.55 = 133,289.55/x
  3. Step 3: Cross multiply
    554,013.66x = 831,020.55 × 133,289.55
  4. Step 4: Simplify right side
    554,013.66x = 110,766,355,150.25
  5. Step 5: Solve for x
    x = 110,766,355,150.25/554,013.66
  6. Step 6: Final answer
    x = 199,934.34

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1.5x scale

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.