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Finding the Fourth Proportional to 303,832.80, 455,749.20 and 185,637.60

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Solution

The fourth proportional to 303,832.80, 455,749.20 and 185,637.60 is: 278,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,832.80 : 455,749.20 = 185,637.60 : x
  2. Step 2: Convert to fraction form
    303,832.80/455,749.20 = 185,637.60/x
  3. Step 3: Cross multiply
    303,832.80x = 455,749.20 × 185,637.60
  4. Step 4: Simplify right side
    303,832.80x = 84,604,187,689.92
  5. Step 5: Solve for x
    x = 84,604,187,689.92/303,832.80
  6. Step 6: Final answer
    x = 278,456.40

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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.