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Finding the Fourth Proportional to 329,037.60, 493,556.40 and 291,639.90

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Solution

The fourth proportional to 329,037.60, 493,556.40 and 291,639.90 is: 437,459.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,037.60 : 493,556.40 = 291,639.90 : x
  2. Step 2: Convert to fraction form
    329,037.60/493,556.40 = 291,639.90/x
  3. Step 3: Cross multiply
    329,037.60x = 493,556.40 × 291,639.90
  4. Step 4: Simplify right side
    329,037.60x = 143,940,739,140.36
  5. Step 5: Solve for x
    x = 143,940,739,140.36/329,037.60
  6. Step 6: Final answer
    x = 437,459.85

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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.