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Finding the Fourth Proportional to 303,075.56, 454,613.28 and 81,459.56

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Solution

The fourth proportional to 303,075.56, 454,613.28 and 81,459.56 is: 122,189.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,075.56 : 454,613.28 = 81,459.56 : x
  2. Step 2: Convert to fraction form
    303,075.56/454,613.28 = 81,459.56/x
  3. Step 3: Cross multiply
    303,075.56x = 454,613.28 × 81,459.56
  4. Step 4: Simplify right side
    303,075.56x = 37,032,597,758.96
  5. Step 5: Solve for x
    x = 37,032,597,758.96/303,075.56
  6. Step 6: Final answer
    x = 122,189.32

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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.