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Finding the Fourth Proportional to 353,901.60, 530,745.12 and 101,165.28

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Solution

The fourth proportional to 353,901.60, 530,745.12 and 101,165.28 is: 151,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,901.60 : 530,745.12 = 101,165.28 : x
  2. Step 2: Convert to fraction form
    353,901.60/530,745.12 = 101,165.28/x
  3. Step 3: Cross multiply
    353,901.60x = 530,745.12 × 101,165.28
  4. Step 4: Simplify right side
    353,901.60x = 53,692,978,673.43
  5. Step 5: Solve for x
    x = 53,692,978,673.43/353,901.60
  6. Step 6: Final answer
    x = 151,717.25

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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.