Home / 340,495.20-510,825.60-103,842.72

Finding the Fourth Proportional to 340,495.20, 510,825.60 and 103,842.72

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Solution

The fourth proportional to 340,495.20, 510,825.60 and 103,842.72 is: 155,789.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,495.20 : 510,825.60 = 103,842.72 : x
  2. Step 2: Convert to fraction form
    340,495.20/510,825.60 = 103,842.72/x
  3. Step 3: Cross multiply
    340,495.20x = 510,825.60 × 103,842.72
  4. Step 4: Simplify right side
    340,495.20x = 53,045,519,749.63
  5. Step 5: Solve for x
    x = 53,045,519,749.63/340,495.20
  6. Step 6: Final answer
    x = 155,789.33

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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.