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Finding the Fourth Proportional to 368,078.40, 552,117.60 and 354,300.30

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Solution

The fourth proportional to 368,078.40, 552,117.60 and 354,300.30 is: 531,450.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,078.40 : 552,117.60 = 354,300.30 : x
  2. Step 2: Convert to fraction form
    368,078.40/552,117.60 = 354,300.30/x
  3. Step 3: Cross multiply
    368,078.40x = 552,117.60 × 354,300.30
  4. Step 4: Simplify right side
    368,078.40x = 195,615,431,315.28
  5. Step 5: Solve for x
    x = 195,615,431,315.28/368,078.40
  6. Step 6: Final answer
    x = 531,450.45

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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.