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Finding the Fourth Proportional to 303,407.87, 455,202.32 and 90,182.84

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Solution

The fourth proportional to 303,407.87, 455,202.32 and 90,182.84 is: 135,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,407.87 : 455,202.32 = 90,182.84 : x
  2. Step 2: Convert to fraction form
    303,407.87/455,202.32 = 90,182.84/x
  3. Step 3: Cross multiply
    303,407.87x = 455,202.32 × 90,182.84
  4. Step 4: Simplify right side
    303,407.87x = 41,051,435,265.26
  5. Step 5: Solve for x
    x = 41,051,435,265.26/303,407.87
  6. Step 6: Final answer
    x = 135,301.16

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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.