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Finding the Fourth Proportional to 340,418.85, 510,628.28 and 235,442.85

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Solution

The fourth proportional to 340,418.85, 510,628.28 and 235,442.85 is: 353,164.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,418.85 : 510,628.28 = 235,442.85 : x
  2. Step 2: Convert to fraction form
    340,418.85/510,628.28 = 235,442.85/x
  3. Step 3: Cross multiply
    340,418.85x = 510,628.28 × 235,442.85
  4. Step 4: Simplify right side
    340,418.85x = 120,223,776,356.58
  5. Step 5: Solve for x
    x = 120,223,776,356.58/340,418.85
  6. Step 6: Final answer
    x = 353,164.28

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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.