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Finding the Fourth Proportional to 480,099.56, 720,186.09 and 143,114.45

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Solution

The fourth proportional to 480,099.56, 720,186.09 and 143,114.45 is: 214,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,099.56 : 720,186.09 = 143,114.45 : x
  2. Step 2: Convert to fraction form
    480,099.56/720,186.09 = 143,114.45/x
  3. Step 3: Cross multiply
    480,099.56x = 720,186.09 × 143,114.45
  4. Step 4: Simplify right side
    480,099.56x = 103,069,032,030.39
  5. Step 5: Solve for x
    x = 103,069,032,030.39/480,099.56
  6. Step 6: Final answer
    x = 214,682.62

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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.