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Finding the Fourth Proportional to 303,073.56, 454,610.28 and 81,457.56

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Solution

The fourth proportional to 303,073.56, 454,610.28 and 81,457.56 is: 122,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,073.56 : 454,610.28 = 81,457.56 : x
  2. Step 2: Convert to fraction form
    303,073.56/454,610.28 = 81,457.56/x
  3. Step 3: Cross multiply
    303,073.56x = 454,610.28 × 81,457.56
  4. Step 4: Simplify right side
    303,073.56x = 37,031,444,159.72
  5. Step 5: Solve for x
    x = 37,031,444,159.72/303,073.56
  6. Step 6: Final answer
    x = 122,186.32

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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.