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Finding the Fourth Proportional to 303,419.10, 455,019.30 and 153,609.60

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Solution

The fourth proportional to 303,419.10, 455,019.30 and 153,609.60 is: 230,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,419.10 : 455,019.30 = 153,609.60 : x
  2. Step 2: Convert to fraction form
    303,419.10/455,019.30 = 153,609.60/x
  3. Step 3: Cross multiply
    303,419.10x = 455,019.30 × 153,609.60
  4. Step 4: Simplify right side
    303,419.10x = 69,895,332,665.28
  5. Step 5: Solve for x
    x = 69,895,332,665.28/303,419.10
  6. Step 6: Final answer
    x = 230,359.04

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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.