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Finding the Fourth Proportional to 352,987.34, 529,267.37 and 142,379.24

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Solution

The fourth proportional to 352,987.34, 529,267.37 and 142,379.24 is: 213,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,987.34 : 529,267.37 = 142,379.24 : x
  2. Step 2: Convert to fraction form
    352,987.34/529,267.37 = 142,379.24/x
  3. Step 3: Cross multiply
    352,987.34x = 529,267.37 × 142,379.24
  4. Step 4: Simplify right side
    352,987.34x = 75,356,682,539.17
  5. Step 5: Solve for x
    x = 75,356,682,539.17/352,987.34
  6. Step 6: Final answer
    x = 213,482.68

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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.