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Finding the Fourth Proportional to 303,755.10, 455,523.30 and 153,945.60

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Solution

The fourth proportional to 303,755.10, 455,523.30 and 153,945.60 is: 230,862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,755.10 : 455,523.30 = 153,945.60 : x
  2. Step 2: Convert to fraction form
    303,755.10/455,523.30 = 153,945.60/x
  3. Step 3: Cross multiply
    303,755.10x = 455,523.30 × 153,945.60
  4. Step 4: Simplify right side
    303,755.10x = 70,125,807,732.48
  5. Step 5: Solve for x
    x = 70,125,807,732.48/303,755.10
  6. Step 6: Final answer
    x = 230,862.98

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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.