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Finding the Fourth Proportional to 303,327.80, 455,270.96 and 153,672.20

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Solution

The fourth proportional to 303,327.80, 455,270.96 and 153,672.20 is: 230,649.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,327.80 : 455,270.96 = 153,672.20 : x
  2. Step 2: Convert to fraction form
    303,327.80/455,270.96 = 153,672.20/x
  3. Step 3: Cross multiply
    303,327.80x = 455,270.96 × 153,672.20
  4. Step 4: Simplify right side
    303,327.80x = 69,962,490,019.31
  5. Step 5: Solve for x
    x = 69,962,490,019.31/303,327.80
  6. Step 6: Final answer
    x = 230,649.78

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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.