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Finding the Fourth Proportional to 303,144.55, 454,533.67 and 120,803.40

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Solution

The fourth proportional to 303,144.55, 454,533.67 and 120,803.40 is: 181,132.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,144.55 : 454,533.67 = 120,803.40 : x
  2. Step 2: Convert to fraction form
    303,144.55/454,533.67 = 120,803.40/x
  3. Step 3: Cross multiply
    303,144.55x = 454,533.67 × 120,803.40
  4. Step 4: Simplify right side
    303,144.55x = 54,909,212,750.48
  5. Step 5: Solve for x
    x = 54,909,212,750.48/303,144.55
  6. Step 6: Final answer
    x = 181,132.11

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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.