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Finding the Fourth Proportional to 303,530.60, 455,295.90 and 223,814.45

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Solution

The fourth proportional to 303,530.60, 455,295.90 and 223,814.45 is: 335,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,530.60 : 455,295.90 = 223,814.45 : x
  2. Step 2: Convert to fraction form
    303,530.60/455,295.90 = 223,814.45/x
  3. Step 3: Cross multiply
    303,530.60x = 455,295.90 × 223,814.45
  4. Step 4: Simplify right side
    303,530.60x = 101,901,801,445.76
  5. Step 5: Solve for x
    x = 101,901,801,445.76/303,530.60
  6. Step 6: Final answer
    x = 335,721.68

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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.