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Finding the Fourth Proportional to 505,012.50, 757,645.62 and 145,184.01

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Solution

The fourth proportional to 505,012.50, 757,645.62 and 145,184.01 is: 217,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,012.50 : 757,645.62 = 145,184.01 : x
  2. Step 2: Convert to fraction form
    505,012.50/757,645.62 = 145,184.01/x
  3. Step 3: Cross multiply
    505,012.50x = 757,645.62 × 145,184.01
  4. Step 4: Simplify right side
    505,012.50x = 109,998,029,270.54
  5. Step 5: Solve for x
    x = 109,998,029,270.54/505,012.50
  6. Step 6: Final answer
    x = 217,812.49

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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.