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Finding the Fourth Proportional to 480,097.69, 720,146.78 and 125,110.81

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Solution

The fourth proportional to 480,097.69, 720,146.78 and 125,110.81 is: 187,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,097.69 : 720,146.78 = 125,110.81 : x
  2. Step 2: Convert to fraction form
    480,097.69/720,146.78 = 125,110.81/x
  3. Step 3: Cross multiply
    480,097.69x = 720,146.78 × 125,110.81
  4. Step 4: Simplify right side
    480,097.69x = 90,098,146,339.14
  5. Step 5: Solve for x
    x = 90,098,146,339.14/480,097.69
  6. Step 6: Final answer
    x = 187,666.28

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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.