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Finding the Fourth Proportional to 301,720.77, 452,581.12 and 77,081.68

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Solution

The fourth proportional to 301,720.77, 452,581.12 and 77,081.68 is: 115,622.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,720.77 : 452,581.12 = 77,081.68 : x
  2. Step 2: Convert to fraction form
    301,720.77/452,581.12 = 77,081.68/x
  3. Step 3: Cross multiply
    301,720.77x = 452,581.12 × 77,081.68
  4. Step 4: Simplify right side
    301,720.77x = 34,885,713,065.88
  5. Step 5: Solve for x
    x = 34,885,713,065.88/301,720.77
  6. Step 6: Final answer
    x = 115,622.51

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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.