Home / 303,520.20-455,280.30-103,822.80

Finding the Fourth Proportional to 303,520.20, 455,280.30 and 103,822.80

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Solution

The fourth proportional to 303,520.20, 455,280.30 and 103,822.80 is: 155,734.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,520.20 : 455,280.30 = 103,822.80 : x
  2. Step 2: Convert to fraction form
    303,520.20/455,280.30 = 103,822.80/x
  3. Step 3: Cross multiply
    303,520.20x = 455,280.30 × 103,822.80
  4. Step 4: Simplify right side
    303,520.20x = 47,268,475,530.84
  5. Step 5: Solve for x
    x = 47,268,475,530.84/303,520.20
  6. Step 6: Final answer
    x = 155,734.20

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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.