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Finding the Fourth Proportional to 303,344.63, 455,070.33 and 103,618.20

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Solution

The fourth proportional to 303,344.63, 455,070.33 and 103,618.20 is: 155,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,344.63 : 455,070.33 = 103,618.20 : x
  2. Step 2: Convert to fraction form
    303,344.63/455,070.33 = 103,618.20/x
  3. Step 3: Cross multiply
    303,344.63x = 455,070.33 × 103,618.20
  4. Step 4: Simplify right side
    303,344.63x = 47,153,568,468.01
  5. Step 5: Solve for x
    x = 47,153,568,468.01/303,344.63
  6. Step 6: Final answer
    x = 155,445.54

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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.