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Finding the Fourth Proportional to 368,274.36, 552,411.54 and 318,203

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Solution

The fourth proportional to 368,274.36, 552,411.54 and 318,203 is: 477,304.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,274.36 : 552,411.54 = 318,203 : x
  2. Step 2: Convert to fraction form
    368,274.36/552,411.54 = 318,203/x
  3. Step 3: Cross multiply
    368,274.36x = 552,411.54 × 318,203
  4. Step 4: Simplify right side
    368,274.36x = 175,779,009,262.62
  5. Step 5: Solve for x
    x = 175,779,009,262.62/368,274.36
  6. Step 6: Final answer
    x = 477,304.50

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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.