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Finding the Fourth Proportional to 318,946.44, 478,420.33 and 299,460.27

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Solution

The fourth proportional to 318,946.44, 478,420.33 and 299,460.27 is: 449,191.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,946.44 : 478,420.33 = 299,460.27 : x
  2. Step 2: Convert to fraction form
    318,946.44/478,420.33 = 299,460.27/x
  3. Step 3: Cross multiply
    318,946.44x = 478,420.33 × 299,460.27
  4. Step 4: Simplify right side
    318,946.44x = 143,267,881,195.29
  5. Step 5: Solve for x
    x = 143,267,881,195.29/318,946.44
  6. Step 6: Final answer
    x = 449,191.03

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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.