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Finding the Fourth Proportional to 295,530.10, 443,003.55 and 145,647.70

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Solution

The fourth proportional to 295,530.10, 443,003.55 and 145,647.70 is: 218,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,530.10 : 443,003.55 = 145,647.70 : x
  2. Step 2: Convert to fraction form
    295,530.10/443,003.55 = 145,647.70/x
  3. Step 3: Cross multiply
    295,530.10x = 443,003.55 × 145,647.70
  4. Step 4: Simplify right side
    295,530.10x = 64,522,448,149.34
  5. Step 5: Solve for x
    x = 64,522,448,149.34/295,530.10
  6. Step 6: Final answer
    x = 218,327.84

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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.