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Finding the Fourth Proportional to 303,641.40, 455,243.40 and 170,562.45

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Solution

The fourth proportional to 303,641.40, 455,243.40 and 170,562.45 is: 255,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,641.40 : 455,243.40 = 170,562.45 : x
  2. Step 2: Convert to fraction form
    303,641.40/455,243.40 = 170,562.45/x
  3. Step 3: Cross multiply
    303,641.40x = 455,243.40 × 170,562.45
  4. Step 4: Simplify right side
    303,641.40x = 77,647,429,650.33
  5. Step 5: Solve for x
    x = 77,647,429,650.33/303,641.40
  6. Step 6: Final answer
    x = 255,720.83

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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.