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Finding the Fourth Proportional to 331,756.40, 497,537.40 and 154,220.60

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Solution

The fourth proportional to 331,756.40, 497,537.40 and 154,220.60 is: 231,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,756.40 : 497,537.40 = 154,220.60 : x
  2. Step 2: Convert to fraction form
    331,756.40/497,537.40 = 154,220.60/x
  3. Step 3: Cross multiply
    331,756.40x = 497,537.40 × 154,220.60
  4. Step 4: Simplify right side
    331,756.40x = 76,730,516,350.44
  5. Step 5: Solve for x
    x = 76,730,516,350.44/331,756.40
  6. Step 6: Final answer
    x = 231,285.72

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1.5x scale

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.