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Finding the Fourth Proportional to 318,097.79, 438,975.43 and 174,858.71

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Solution

The fourth proportional to 318,097.79, 438,975.43 and 174,858.71 is: 241,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,097.79 : 438,975.43 = 174,858.71 : x
  2. Step 2: Convert to fraction form
    318,097.79/438,975.43 = 174,858.71/x
  3. Step 3: Cross multiply
    318,097.79x = 438,975.43 × 174,858.71
  4. Step 4: Simplify right side
    318,097.79x = 76,758,678,071.79
  5. Step 5: Solve for x
    x = 76,758,678,071.79/318,097.79
  6. Step 6: Final answer
    x = 241,305.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.