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Finding the Fourth Proportional to 331,455.40, 497,355.90 and 144,485.80

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Solution

The fourth proportional to 331,455.40, 497,355.90 and 144,485.80 is: 216,804.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,455.40 : 497,355.90 = 144,485.80 : x
  2. Step 2: Convert to fraction form
    331,455.40/497,355.90 = 144,485.80/x
  3. Step 3: Cross multiply
    331,455.40x = 497,355.90 × 144,485.80
  4. Step 4: Simplify right side
    331,455.40x = 71,860,865,096.22
  5. Step 5: Solve for x
    x = 71,860,865,096.22/331,455.40
  6. Step 6: Final answer
    x = 216,804.03

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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.