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Finding the Fourth Proportional to 303,415.90, 455,233.20 and 292,480.90

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Solution

The fourth proportional to 303,415.90, 455,233.20 and 292,480.90 is: 438,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,415.90 : 455,233.20 = 292,480.90 : x
  2. Step 2: Convert to fraction form
    303,415.90/455,233.20 = 292,480.90/x
  3. Step 3: Cross multiply
    303,415.90x = 455,233.20 × 292,480.90
  4. Step 4: Simplify right side
    303,415.90x = 133,147,016,045.88
  5. Step 5: Solve for x
    x = 133,147,016,045.88/303,415.90
  6. Step 6: Final answer
    x = 438,826.76

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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.