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Finding the Fourth Proportional to 499,939.98, 750,020.13 and 144,968.82

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Solution

The fourth proportional to 499,939.98, 750,020.13 and 144,968.82 is: 217,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,939.98 : 750,020.13 = 144,968.82 : x
  2. Step 2: Convert to fraction form
    499,939.98/750,020.13 = 144,968.82/x
  3. Step 3: Cross multiply
    499,939.98x = 750,020.13 × 144,968.82
  4. Step 4: Simplify right side
    499,939.98x = 108,729,533,222.35
  5. Step 5: Solve for x
    x = 108,729,533,222.35/499,939.98
  6. Step 6: Final answer
    x = 217,485.17

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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.