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Finding the Fourth Proportional to 318,119.72, 439,005.06 and 174,889

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Solution

The fourth proportional to 318,119.72, 439,005.06 and 174,889 is: 241,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,119.72 : 439,005.06 = 174,889 : x
  2. Step 2: Convert to fraction form
    318,119.72/439,005.06 = 174,889/x
  3. Step 3: Cross multiply
    318,119.72x = 439,005.06 × 174,889
  4. Step 4: Simplify right side
    318,119.72x = 76,777,155,938.34
  5. Step 5: Solve for x
    x = 76,777,155,938.34/318,119.72
  6. Step 6: Final answer
    x = 241,346.74

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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.