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Finding the Fourth Proportional to 340,464.40, 510,745.20 and 115,835.20

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Solution

The fourth proportional to 340,464.40, 510,745.20 and 115,835.20 is: 173,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,464.40 : 510,745.20 = 115,835.20 : x
  2. Step 2: Convert to fraction form
    340,464.40/510,745.20 = 115,835.20/x
  3. Step 3: Cross multiply
    340,464.40x = 510,745.20 × 115,835.20
  4. Step 4: Simplify right side
    340,464.40x = 59,162,272,391.04
  5. Step 5: Solve for x
    x = 59,162,272,391.04/340,464.40
  6. Step 6: Final answer
    x = 173,769.34

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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.